I have caveman-wide feet, and have tried basically all Nike shoes from the past few years. Some feedback:
2008
Vapor IV's: My first experience with the wide foot pain - not that bad, as my feet were still fairly small back then, but could feel definite pain on the outside of my feet. Just put up with it as I thought it was normal, and the pain would go away after some time on court.
Breath Cage II's: Slightly better than the Vapors, but still pain if not warmed up properly and/or laces were tightened a lot. Mainly used them on clay and carpet, and felt it on both surfaces, but was better on the carpet. Wouldn't recommend as they are far worse in the foot pain department than the more modern shoes
2009
Courtballistec 1.3: Far better than the BCII's in terms of wideness (for me anyway) and also pretty good durability. The foot pain was still there occasionally, but these were like a dream compared to the BCII's.
Vapor VI: DO NOT BUY. Unless you consider walking on knives comfortable, you won't want these. By far the most uncomfortable shoes I've ever worn, and durability was awful too. If you ever want to reach the point in a match where you actually consider chopping your own feet off to stop the pain, then you might want them, but otherwise, STAY AWAY!
2010
Courtballistec 2.3: An improvement over the 1.3's in basically everything apart from width - for me these actually felt slightly narrower than the older 1.3's, but they were almost perfect in every other department. Breathability, comfort and durability were all good, and these shoes still have some life left in them today. However, the width was still an issue, and on the occasions when the pain did crop up, it would really be awful. If you do end up getting some, then I'd suggest buying a fairly snug fit, but then lacing them really loose. They have a similar fit to the 1.3's, and I found that even though you're supposed to buy a half size up, I bought true to size, and then just made sure they were never laced tight. Its because the tongue sockliner thing keeps your foot pretty snug anyway, so I almost found lacing them tight didn't really make a difference, especially with wider feet. In fact, I wear these in the gym now, and I always leave them unlaced, but they still fit perfectly and never flop around like normal unlaced shoes.
Breath 2K10's: These are probably the widest shoes I've had, and definitely one of my favourite models. When I first got them, the difference in width was really apparent - just looking down at the shoes compared to the 2.3's they looked almost ridiculous in terms of how wide they were. But on court they felt great. Break in period was pretty good, and comfort was very good - on a par with the 2.3's heavier padding. Only problem for me was the durability. I've had these since roughly end of October, and (alternating with the 2.3's) have almost worn through them in lots of places. And thats with playing on only carpet for a month in December and January, with the rest being on hard. Not bad in terms of durability, but I really feel these wouldn't last more than a month or two (at the most) if I was using just them on hard court. But in terms of comfort and width, I'd definitely recommend these.
2010-2011
Lunarlite Vapor Tour: The widest shoes out of every model I've tried. I was initially apprehensive about getting them, what with my previous experiences with the Vapor line (I still get nightmares), but so far these shoes have been excellent. Straight out the box they felt great, very lightweight, nice fit without being too narrow, and looked pretty good too. I found the break in period to be minimal, and have been using these since December, with no foot pain so far. Although, I played for 3 hours on Saturday morning (I'm in Dubai and weather was very hot that day) and did feel the shoes heating up as time went on. In fact, by the end my feet felt a little blistered, but just had to take them off and cool down a little to get rid of it. Durability looks like it might be an issue, but I got these for half price in the sale (how I get all my tennis shoes) so it won't be an issue if they break down in a month or two, now I'm playing on hard court all the time.
To sum up then, I'd say either B2K10's or Lunarlites (haven't tried the new ones, but I've heard they're fairly similar) for wider footed peeps, as long as durability isn't an issue for you. Although, correct me if I'm wrong here, I think the US market gets a six month warranty with most Nike tennis shoes, so it wouldn't matter if you wore through them in less time, as they can replace them(?). Hope this helps anyway.
