It would almost be easier to just list the one/ones that I like the least, lol. So many are completely awesome.
I looove the Dargie Delight II because it's a chameleon finish and changes depending on what angle you view it from. For the same reason, Mystic Dream is also incredibly amazing.
I also love the new Island Burst, which is more like Honey Burst(which is also awesome), that is currently present on both the GC BFR Island Burst as well as the Koa-versions.
But simply because I'm a sucker for exclusivity, I'd have to pick Silver Burst or the one-off for Bulb.
Usually I prefer solid colours over transparent finishes (with the exception of anything blue, and the current PDN series, which are astonishing) though keeping an eye on the Silo specials as I do, pickguard colour has a lot to do with it too. My favourites so far have been Envy Green (a limited run in 2004, with Abalone pickguard, and there was a Japan only run of Lukes with gold hardware), Carbon Blue Pearl (discontinued, looked beautiful with the also now discontinued Abalone or Moonstone pickguards), Graphite Pearl (again discontinued, stunning with moonstone pickguard) and of course the Buttercream 2005 LE (which I really didn't like on guitars without the tort pickguard).
There has not been an EBMM finish I have disliked, but particular favorites of mine include Venetian Redburst, Bahama Blueburst, Island Burst, and all of the Goldtop variants.
I have my Albert Lee HH metro burst with a tortoise shell pick guard being made as we speak.. But I kinda like the foam green too.. Is that what they call it "foam green"?
I would have to go for Pacific Blue Burst in general, although my old trans black axis was probably the best EBMM I ever owned for both looks and sound.
Oh and the special edition Red Pearl burst with black H/W JP6 looked stunning in pics.