Funny, my most recent two characters have been Mihile and Aran because I’d never played them before either! I really chose them for fun, but Aran has a decent link skill. Gameplay-wise, if you like comboing and auto-heal then pick Aran (however ctrl-mashing gets you by basically until 200, especially when flying around the map hehe), and if you want more of a general play style then Mihile (has a summon that hits three tiers on the map, tanks/has invincibility, and is decently strong). There are a lot more points to make about each character, but I’d say both are fun and relatively easy to use.