[Torquemada Coteaz]

I'm really beating myself up as to what I want to use for my 750 point army, but my problem is I have to many models i want to use!
This is the list I'm toying around with.

Do you already have these models or are you making the list before you buy the models? If the issue is that you have a large collection, then just make the points size larger.

Emperor's Champion: 90 pts (can't decide on a vow)

As a personal preference, I always pick Uphold the Honour because it's cheap and still useable for whatever the enemy is. The +1S vow is good against high initiative armies. (Swarm/stealy nids, eldar, etc etc) The other two are fairly obvious IIRC, especially the anti-psyker one

Chaplain: 95 pts (I find the options for the Black Templars Chaplains annoyingly confusing!)

Not really, Keep his Rosiarus and Crozus, though I think you can Mastercraft his Crozus if you wish for the points cost. His command squad options are fairly straightforward, though you probalby wont want to field one in such a small game. Wargear wise you might want to terminator honours+artificer armour him up for some added survivability and punch.

Troop choices: Crusader squad, 10 Initates, Bolters, 1 Missle Launcher Crusader seals. 190

You probably would want to split this squad into 2 squads to maximize firepower by taking more special/heavy weapons, seeing as they are obviously a support squad.

Crusader squad, 10 Initates, Bolt pistols & Chain Swords, 1 Flamer, Crusader seals 186 pts

Flamer and no power weapons? eh ok... attach the Chaplain to them though. scares the hell out of whoever you're facing, and maybe you might want to use the extra 750-689 pts to beef this squad up with some neophytes The alternative is to jetpack your chappie and attach him to your assault squad. Generally though I'd suggest these guys to be a bit CC-ed up either way.

Fast Attack: Assault Squad 5 Initiates, 1 Plasma Pistols, 1 Power Weapon and Storm Shield. 128

I love assault marines. Personally I don't like giving my "fleshy" marines plasma pistols, but that's just me.