| War/Sorc?
1) Look at the Heritage feats for Sorcerers. I'd take the Infernal Heritage Sorc feat, followed by Infernal Sorc Howl: gotta love that Sonic damage...esp. since its an area of effect attack! It also is unaffected by ASF, grappling, etc.
Celestial heritage would also be a bit of a laugher from a RP perspective. Its damage is limited to affecting only evil critters, meaning you'd be able to do an AE attack that won't affect your partymates who are engaged in melee with your targets.
2) I would also probably go with some kind of polearm. If somebody grapples you...well...shout in their face (see above).
3) Take a close look at Reserve feats- another way to get use out of your spell levels without being concerned about ASF.
4) Consider the Battle Sorcerer from Unearthed Arcana if your DM will add it to the list you provided. If so, you'll give up a few spells/level in exchange for never worrying about ASF. | 
And yet another word from our sponsors
