Jack, I meant by "(appropriately) different styles" is that everything didn't look like A), "Agon" or B) "In the Middle, Somewhat Elevated," not that I thought each piece was stylstically pure.
The whole question of whether a ballet should be danced in the style of the choreographer, or the company, is an interesting one, and I can argue both sides of it

I don't think "Les Patineurs" looked very Ashtonian -- and the older critics I knew who had seen it danced by Sadler's Wells DEFINITELY did not think it looked very Ashtonian. On the other hand, it looked very MCB, and in that sense had stylistic integrity, and so this bothered me less than when I've seen Ashton danced by a company who tried its darndest to dance it the way the Royal once danced it and failed; (I once wrote, if I may commit the unpardonable sin of quoting myself, that watching a particular ballet was like "listening to Keats being read with a stutter") or just dancing it without a thought in the world that the style just might be something different from "Great Galloping Gottschalk," or whatever they'd just danced yesterday.
I thought it was too fast in places -- especially the Girl in White -- and too sharp. But on the other hand, they were dancing it and not praying to it, and they weren't telegrpahing: "We're cute! We're charming! We're English (not)!" the way ABT did it when I first saw it in the 1970s. (The Joffrey Ballet had a more natural approach, too, I thought, and a wonderful, very young Blue Skater, Mark Goldweber, when I saw them do it).
Other faults: MBC's was sloppy, but it's a very hard ballet. There wasn't enough difference between the Blue Girls (real bravura parts; they'd be competition skaters if the ballet had been set in 1987 and not 1937) and the Red Girls (who just got on skates last week and are there to be sweet). The Boy in Blue had some very good moments, but wasn't very centered -- off night? I don't know.
My impression, though, was that, in this ballet and for the whole program, the OUTLINE was there. It's the way ballets used to be staged long ago, and the way jigsaw puzzles are solved today. Get the outline, and get it firm and solid. Then fill in the bits in between. I thought there was a solid outline, and a lot of respect and, more importantly, a lot of joy in the dancing. So I was happy.
For the whole program, I knew that there wasn't one dancer on the level of the originators of the roles, but I didn't care

When I was leaving, the woman behind me said to her companion, "Did you ever see Cyd Charisse and Gene Kelly in that?" -- "that" being "Slaughter." She was right, but.... In general, I thought everyone was dancing as well as he or she could on that particular night, and that the management cared that the ballets and the dancers looked their best. (I don't know this. Everyone could have been a last minute substitute, and they could have rehearsed for on, but it didn't look that way.)
Just briefly, because I'm on another deadline, I especially liked Jennifer Kronenberg in "Duo Concertante" and Deanne Seay in "Sylvia." Kronenberg's dancing was clear -- the same kind of flash card effect of Merrill Ashley's dancing, though not as strong -- and yet not at all antiseptic. There was a languor to it, a sense of luxuriating in the steps that I liked very much. Seay's "Sylvia" was a witty, sophisticated French cousin of Aurora. Again, very clearly danced, especially the coda, and I especially liked it that she looked at home in a tutu and didn't make this look like Just Another Balanchine ballet.
I didn't love MCB during the Balanchine Celebration or performances I've seen over the past few years here; they've performed quite frequently at George Mason or Wolf Trap. I always liked them, but I wasn't completely won over. They won me over last night

I sense that Jack was perhaps not so pleased? Diversity is the spice of life....