I've played both very briefly.....so my "initial" impressions are open to change down the road.
GB - Fantastic art, cool layout, tight, brutal.....I want one. For a NIB it offers great bang for your buck.
TH - Also a gorgeous game. Has more of a "wow" factor to the uninitiated. Played better than I thought it would...I had a lot of fun on it.....don't want one. Why you ask? #1 Price VS Performance GB kicks it's ass.....it just does when you factor in the cost. #2 My initial fear looks to have come to fruition....long ball times. It's why LOTR left and won't be back. It's why IM is one of my all time favorites. Hobbit was really fun but to own it and really get to know it would end up turning into very long games, which isn't really my cup of tea (and also why WPT ended up leaving). So far the only slowish game I can stand to have longer games on is WMS IJ.
DMD vs LCD - No contest, the LCD on JJP games looks fantastic and really gives it major "crowd appeal" vs it's rivals. Funny thing is I almost never see the screen when I'm playing