I attended the 03/27 performance of Swan Lake w/ David Hallberg and Michele Wiles. (This was the truncated, "family friendly" performance.)
Overall, I was favorably impressed by ABT's version of Swan Lake. The corps was "together" (or at least much more so than what I was expecting given all the negative remarks I had read on this board) and the soloists performed well. I could have lived without some of the costumes (particularly on the male dancers) but it wasn't a major thing for me. And I kind of liked The Swamp Thing!
Anyway, on to what everyone wants to know -- Hallberg and Wiles. I may disappoint some people with what I'm about to say but I thought Hallberg far outperformed Wiles. Or, maybe a better way to put it is that he "outpresenced" her. They both danced absolutely correctly in a technical sense. It's just that you could feel his charisma all the way back to where I was sitting (about half way back on the main floor) and she didn't register in the same way. In fact, whenever they were together on stage, I found my eye drifting toward him instead of her because he was just SO charismatic. So, while the overall performance was fine, I did feel that a curious imbalance occurred where he was projecting up to the rafters (but not in a vulgar or clownish way) and she wasn't projecting much past the first few rows.
One more thing: The movie Weatherman with Nicolas Cage and Michael Caine was filming across the street from the Opera House that day. Since I got to the Opera House a little early, I found a nice vantage point to watch the filming while I waited -- which happened to be in front of the stage door. So, there was an added bonus of seeing various ABT dancers step outside for some fresh air or a cigarette break!