The most annoying thing about Summoner is the fact that when Multiple Summoner are around and we all target the same add/boss, sometimes I lose track of my DoT's; a Star, a outline, something that can indicate mine.

Pets - I would like more type of Pet and the ability to Summon more at 1 time at a time.

Summoner's Companion - While the Chocobo is Awesome, I find it odd to the extent that a SMN/ARN should have their very own Companion, This could be were we talk about size, role, and type. I summoner a Clone of my self, LOL, and throw rotation energy at my enemies, BIG LOL.