I also got a MD2 with the new style. I like it better then the old one, its more distinguished. It looks and feels more "premium", if that makes any sense. However, I dont think Im a fan of it for anything longer then the MD2 body. MD4s should have remained the way they were IMO.
My first Malkoff has the pineapple knurling (though I have plenty of other lights with more traditional grip-enhancers to compare it to), and I dig it. Between the girthy head, knurling, clip, and tricap, it's not hard to hold onto this light. Looks good, too.
I like it. Just received my new one today, to be used at work. Took a picture before it gets beat up. I think it is enough knurling without being too much. I clip it on and off my pocket numerous times a day. Too much knurling takes a lot more effort.
I like how it doesn't snag on my clothes, but it's also slippery when wet... kinda win-some-lose-some situation. So far I've been more happy with the fact that it didn't tear a new one in my t-shirts than annoyed with the slippage.
Not a huge fan. I've always liked the traditional knurling. Thinking seriously of buying an MD3 while the old style is still available, buy trying to figure out how to do that without getting in trouble for buying more gadgets, especially since I just built an E2 and have an M3 in the mail unannounced...