Yeah, I'd say V is the best for Full Metal Panic Anime + Manga storyline & Gundam Unicorn with best quality animations. Also Yamato 2199. Also Eva Rebuild 1-3. The only downside of V imo is that it sticks too close to Yamato 2199 and like a good chunk of the maps are just following all the eps from that. Otherwise that was a great entry. Mazinger Zero is sweet too.
X is good too, mostly for Wataru. Nadia's ok but there just isn't that much story/units for a game like SRW so it's not a big part of it. Mazinger Zero is even better here. Gurren Lagann is good if you haven't played a SRW with GL before. Would've been better if they did the first half of GL as well though.
T is good so far, maybe liking it better than X thanks to SPACE PIRATE HARLOCK, and Rayearth, and Dunbine OAV. (While I sorta enjoy Cowboy Bebop, it really needs another couple of units or couple more animations because it just feels very meh with a tiny ship sprite doing some shooting with buddy tiny ships and that's all there is). Gun x Sword is good too. It's a little bit of a shame that Diebuster wasn't in this with touched up animations like V/X/T have been doing to Z3 sprites that were generally not as good as they should've been. I get why it's hard to do Gunbuster & Diebuster in the same game since story-wise Diebuster takes place hundreds/thousands of years after Gunbuster but T is doing Dunbine and Dunbine OAV and Dunbine OAV takes place 700 years after Dunbine and
spoiler (click to show/hide)
The main character is a reincarnation of Sho who is now also in this
So I think they could've made Diebuster work. In fact, if T had Diebuster I might've put it up with V, but doing all of FMP manga story in 1 game and Unicorn and Eva Rebuild 1-3 and Yamato is pretty hard to beat, so I think V is still the best of these 3.