I don't agree with that. Rafa's comfort with the banana shot and crosscourt backhand under pressure does not mean that he CAN'T hit/place the ball/winners with a great deal of variety - it just means that these are shots that he's comfortable with. I've seen Nadal hit all of the Fed shots you mentioned - it's not as if the two you mentioned are the only way he wins points, or even frequently used enough to make him one-dimensional. The man has some of the best passing-shots in the business - case closed.
Maybe I'm weird in this, but I tend to value defensive-minded (or at least very good transition-game) players equally as much as, if not more than, attackers. I think the two types complement each other, and for me, it's difficult to enjoy an attacker if the person on the opposite side of the net is not challenging him with good defense. You make it sound as if Nadal wins simply by demoralizing opponents with consistent deep shots - but shouldn't they be able to hit well enough to blow Nadal off the court? or shouldn't they have the mental strength to stay in points until they're on top of a rally again?
Hitting consistent deep shots off flat, well-placed returns/staying in rallies that SHOULD have been finished is something to be appreciated, and honestly, what I think separates the top, TOP players in the men's and women's tours from the rest of their respective fields.
The problem with a lot of attacking players I've seen, is that they have no plan B. When their shots aren't nicking the lines, or are coming back when they shouldn't, they don't know how to win points. I think Verdasco is a great example of this - someone who doesn't seem to know how to hit a truly solid rally ball, he's either successfully attacking or shooting himself in the foot. They seem to have less natural versatility in hitting winners from all over the court ('cept Fed) - or perhaps it's that they play low-percentage tennis, so they pull the trigger when smarter players wouldn't and fail - so when they're out of position - they're screwed.
But beyond that, I'd say Murray - watching him on tv frustrates me. I want to like him, but I can't get into his game - he's just TOO defensive...and it's sickening when you think about how much potential he's shown. Also, his forehand is just atrocious, and when he's not on the move, he's a quite flat player - watch how little happens when someone decides to keep him on the middle of the baseline. I keep hearing he's a talented tactician, but I guess I'm too dense to see it...(aus open final).