Wow thanks for all the advice! I did consider Dread Necromancer, but before I could look it up someone turned me onto to the Bone Knight, so that's the other option I'm considering.
So I'm torn between the hexblade and the bone knight. For the hexblade I'm planning on going with the Dark Companion ACF and then obtain familiar/improved familiar and getting a winter wolf and using it as a mount. Also going with Dreadful wrath and then eventually imperious command. I'm also allowed to use the hexblade fix as well, so that makes the hexblade a little more formidable. I'm also planning on taking the curse of distraction to help shutdown spellcasters.
For the bone knight I'm planning on going Paladin of balance 4/Bone knight 1. If I put my 24 in charisma, that'll give me a +7 to all saves, boost the lay on hands and rebuking ability and number of times I can rebuke per day. I also would start with a bonecraft full plate, and by the time I hit level 8 in bone knight I'd be immune to almost everything.
The plan is paladin 4/bone knight 4/divine crusader 1/bone knight 6. I have to figure out my deity, but I'm going for one with the wrath domain, and I'd get the last 6 levels of bone knight would boost my divine crusader spell casting levels. If I went with Hextor as my diety I may also consider dipping into ordained champion of hextor to get a bonus domain.
I'm also planning on taking power attack and then divine might so I can burn a rebuke use and get my Cha(+7) bonus to melee damage. And I may possibly go for law devotion as well. But either way, that leaves me with 2 feats unaccounted for.
Thanks for all your help!