I played as a Dark Elf Spellsword and I had a good time until about level 15. Then I made a new build. If I ever go the Spellsword route again I'm going to use conjuration, alteration and restoration.
I might try that too. I'm still having fun with mine at level 20, but I'm not sure how much longer Destruction is going to be viable. She's becoming more of a 1H/archer with Restoration, mostly to support the tank that I usually have with me (spellswords are described as a troop-support class, so I like to have a troop to support). It actually works pretty well to let my tank get partially surrounded while I stick-and-move around the outside with my stamina-absorbing Dwarven mace, casting Healing Hands or Fast Heal as necessary. Followers tend to strafe into your line of fire anyway, so once things go up close Destruction can be more trouble than it's worth. If I can peel an enemy off to the side I might dual-cast flames for some quick bandit barbeque, but I mostly just bash away. I play on Adept at the highest and drop it if i have to. My major failure has been Illusion. Just can't get it to work.
Staffs can work really well against dragons. I've used a Firebolt staff and Wabbajack to good effect on blood dragons. I've read that all dragons are vulnerable to flames, regardless of type. Anyway, I have a "do a bit of everything" character that I'm going to try with both staffs for a while as a sort of spell-less battlemage. Should be a blast.
