Disagree a good bit. Bruguera in the form of the 93 French semis against Medvedev has a chance. I feel there was a bit more mystery and variety in the angles, pace, and spin he could generate. Bruguera's "zone" level of play was up there with the best I've ever seen. Nadal is ALWAYS bringing it...Bruguera SOMETIMES brought it, and rarely for an entire match from start to finish. That's the biggest difference to me. Nadal to me is more like Muster, a much more one-dimensional kind of spin, meaning he's coming at you as hard and as fast (with the spin) as he can every time until either you puke or he pukes...which never happens since both of these guys are in such good shape.
Muster would also have a shot. There's only guy I can think of who could run NADAL into the ground until he wanted to puke, and that's Muster. Nadal's unbelievably fit, but I've seen him look a little ragged or tired before too. Muster at his peak had imo the BEST fitness and endurance of anyone in tennis history, PERIOD.
Nadal would win the majority, but I'd really like to see what he'd do and how he'd react when he looks across the net and see a guy who not only matches his determination and will...BUT also wants to KILL him too and absolutely REFUSES to be intimidated by Rafa.
Muster is one of the few one-handers who would NOT be affected by Nadal's spin. He's also a left hander himself.
Imo, both Bruguera and Muster would be able to "handle" Nadal's topspin. ESPECIALLY if they used poly strings too.
Lendl would also have a chance. He has the legs and endurance and mental toughness to "hang in" points as/when needed, but he also has the capability to hit a REAL flat ball. Imo, he would need to find a balance between a Sampras' one-two punch (big serve, FLAT forehand going for the outright winner) type mentality, and a defensive mode mentality to keep Nadal guessing. Just going for flat winners only would be a mistake imo, as with Nadal's legs it'd be too difficult to keep up percentage wise.
In some respects, I'd like to see Lendl adopt the strategy he used so effectively against young Agassi. Of course, it'd be a much more difficult match due to Agassi's then middling "Taco Bell" fitness regimen. However, he has attributes and the kind of strokes that could serve as a counter to Nadal's spinnyness. I don't see Lendl's uber heavy "wand" being pushed around too easily by Nadal's flystick Babolat.
Kuerten would be hit or miss against Nadal...just as he always was. He was a guy who could lose in straight sets to Alberto Costa one year and be match points down against Michael Russel then beat Federer in straight sets another year WELL past his prime type guy. Kuerten to me was the Petr Korda of clay...but with more heart. Kuerten's "heart" sustained him and pulled him through more often than not on his subpar, "just off and spraying" days. His throat slashing, Freddy Kreuger, POWER angles matched with his huricanrana like power and spin on even just STANDARD baseline rally shots...plus the big serve, made him one of those guys like Korda where you just raise the white flag, call it a day, pack it in early, and save your energy for the next day when he was having one of his good days. To me, Kuerten would have that wild, inconsistent fastball pitcher's chance. Like Nolan Ryan, day-in, day-out, not as great some others, but on his day, he was a no-hitter waiting to happen. Kuerten's wins to me would appear like Tsonga's in that he MUST try to overwhelm the senses with the Ka-BOOM effect. If he can keep up the Brazilian-bangled fireworks from start to finish he wins, simple. If he doesn't (which would happen most of the time)...he loses, simple.
Imo, that would be the story on most cases here. Imo, at their absolute best Bruguera, Lendl, and Kuerten would all be able to pull off wins against Nadal. The problem for them would be they that they really would have to be at their ABSOLUTE best. Nothing less would suffice...but then again, that's kind of like what it's like today. Also, Federer imo is NOT the caliber of clay courter as above-mentioned guys at their peak. Absolutely not. He's close, but he'd get out Nadal'd by any of them at their best no questions imo. Federer would break down with too many errors against the spin/power/heaviness of peak Muster and Bruguera, we already saw what sub-prime Kuerten did to him, and Lendl would simply have the attitude of HELL no, I ain't lose to you, pretty boy. He would make it ugly, and look to BRUISE Roger's ego imo, ruff him up in a back alley before the match type attitude.
Wilander would have the least chance. With him, I just don't see where he would be able to hurt Nadal. I think as a not too tall guy, Nadal's shots would get too high on him. I KNOW he wouldn't be able to keep Nadal honest with the occasional WOW power shot like all the other guys are capable of. I think Nadal could settle into a comfortable groove against Wilander on clay, and just routine him or worese until kingdome come. Wilander's craftiness and net mixing ability and endurance would get outweighed by Nadal's relentless legs and heavy as cannonballs shots. I think Wilander would feel out "athete'd" against Nadal. Could he win? Yes, but more so than any other other guys I mentioned, he'd have to rely more on hoping Nadal has a bad day rather than focusing on what HE can do good today.
On FAST court surfaces, however, I would give Wilander the Nalbandian chance. On a fast surface that doesn't bounce up much, I could see Wilander being able to take Nadal's shots off the bounce much more effectively and turning that pace/spin against him with pinpoint precision. His deceptively slithery style volleys would also be much more effective.