Had a few more hours in the game.
I like Exelia (I really wish they just simply named it Gundam Exelia instead of Extreme Gundam Exelia).
I dunno if this is something more common brought over from Maxi Boost (ON), but Exelia has moves with super armor. Specifically, the R+△ moves. A lot of her attacks have long animations, but are really strong in general.
Played the bottom 4 courses (default settings coz iNoob) and easily beat my score with her.
I love her Sphere Bits, or as I like to call it "Heart Bits". It will try to form a heart formation when used. When it reaches max range, they will stop and attempt to fire at target (it would also fail to do the heart formation). It has a long call animation so it's easy to cancel (both by enemy attack and boost dashing).
Her Croix des Zudens (I don't speak French >_>) feels really strong. I didn't bother to compare with other beam weaponry, but it seems to do a ton of damage and reloads quite fast. There's a charged version which gives her two gerobi attacks.
It's annoying that the Croix beam array is only in her Boost Dash melee.
Her normal melee doesn't seem special (found no variants like God Gundam), except for the Beam Saber (Dagger Mode) Throw, which gives her a stun.
Her Link RePhaser moves are more or less her signature moves. They all seem to have long startups but they all give her Super Armor at some point in their animations especially at startup. Normal is a AoE forced knockup (no damage but effect seems pretty good). Back is a gerobi. Side makes her release three orb projectiles in three directions.
The biggest highlight, however, is her forward Link RePhaser (sword dash). It has Super Armor on the entire duration (and has higher priority than most attacks?), can go quite far, has a really good tracking, and hits for a lot of damage. It can also hit multiple enemies if they are in the way between you and the target.
It kinda makes me cry how it has all that on top of being easy to pull off while something like Choukyuu Haou Den'ei Dan can easily get pewpew'd despite using it means disabling your melee attacks.
Her Links are pretty good IMO.
Lv 2: Boost Gauge 25% Up
Lv 3: Boost Cancel Cost 10% Reduction (I'm too noob-y to find this to be useful at Force Mode)
Lv 4: Melee Attacks 25% Up
Lv 5: All Attacks 20% Up
Lv MAX: 5% Endurance Recover for Each Kill
The last one is not so useful due to Force Commands, but +20% more damage on all attacks, and +45% damage on that Link Rephaser sword dash are very good.
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It is kinda weird that you can only choose the four bosses in the official website. There's no Shamblo or Elmeth.
Also, some series have no "rival units" yet (which are mostly the ones added post-release), like Victory, 08th MS Team, War in the Pocket, F91. It'd be nice if they can add some along with Shamblo/Elmeth, but as I mentioned before, I'd rather they further develop upon Force Mode and release a new game with some 400++ missions instead.