My ideal Summoner would require a major overhaul but would be like this:

Titan Egi: Awesome Tank. Could off tank in normal dungeons if needed.
Garuda Egi: Single target DPS.
Ifrit Egi: AOE DPS.

Pet casting is instant, or at least fairly fast, so you can swap between them during dungeons when required.

Skills actually used by the player are pet commands directing them on when to cast their AOE, single target damage or agro control ablities in rotations. Maybe keep the DoTs, but that's it.

I don't want to be just another Mage DPS class.. if I wanted that I would just play a Black Mage. I want to control pets and use them as the main focus of my abilities.

Too much to expect I know but I'm very disappointed in the direction Summoner has gone.