I like them all! Just the mention of a new hood is exciting.
But in all seriousness:
1 & 2:They're not my favorite but I would still slap them on.
3: I like the all black one but I think the current positioning of the bump gives the Jeep too much of a bulking head or bull-nose look. Maybe moving it back some would help.
4, 5, &6: There's a reason that these one's are actually on a WK in my opinion. They look good. I personally like 4 & 6 the most out of these three.
My top 3 are (as of right now): 4-6-3.
RIP 12/20/2013: 2000 Green WJ
Now driving a 7.3L Powerstroke F-250. 5 speed with 4x4.
Always on the look-out for another Jeep.