Well, as far as Alinea goes, the best thing to do is read reports like
this one or
this one and decide if you think the 'rents would find Achatz's cuisine intellectually stimulating or the worst load of bullhockey they ever sat through in their lives.
As far as Trotter's goes, the one person who's posted about the
vegetarian menu seemed quite impressed with that. If I could bring myself to spend a wad like that and not get any meat, I might well go and have it. (I guess I could swing through the Wendy's drive through after.)
As far as Trotter's versus Tru goes, take this for what it's worth as the comments of someone who hasn't been to Trotter's in 15 years or Tru ever, but I don't think they'd strike you as especially similar. Or I think that Trotter would strike you for suggesting they're similar....