Not counting the Boga, which I think is quite cool too, I'd have to say the ARC-170 Fighter is pretty nice. If you are cramped for space, maybe not the best choice, but one of the nicer ships I think I've seen for awhile. Although I know its not a popular choice with others, I kind of like the new Starfighter design...and particularly the coloration of Obi-Wan's fighter. I just found the AT-RT this week, and haven't tried out the "walking" feature yet, but otherwise from what I have seen, I really like it as well. I haven't picked up the Tri-Droid Fighter, and don't really plan to, but I hear it is pretty nice from those who have gotten it. I plan to eventually get Grievous' Wheelbike, but don't have it yet so I guess I can't offer much of an opinion on it at this point. The upcoming Wookiee helicopter looks quite cool to me, from pictures. Overall, the ARC-170 wins out with me as far as the ROTS offerings go.....nice big ship, room for three pilots/clones, and a droid socket. Spiffy.