Biggest thing I see is you're bringing min Troop choices. With only 2, and 1 of them being max 5 strong, you are going to have a lot of trouble with Seize Ground (? the d3+2 objective one). Even if you only keep them in reserve then try to bring them in late for objective grabbing, you can't go wrong with RAS.
Next big thing is that you're taking Dante in a list that he does not support and does not support him. You have Sternguard (a VERY large unit of them, but I'll get back to that) Shooty Terminators, and a Dev Squad which are all ranged support units, but only have 1 unit of Sanguinary Guard to provide Assault Power. Dante is built to benefit a close combat army (he gives his unit Hit and Run which is nice as hell). I know you really like the Sternguard, but they are way too big and expensive even for 2000 points.
This is a pretty small point but one that is relatively important. Your Stormraven, currently equipped with MM/LC, is suffering from a very common affliction known as range conflict. The Multimelta, in order to be truly effective needs to be within 12", while the Lascannon is best used at exactly 48". Since you're going to be up close to make the most of the MM put the Assault Cannon back on, especially since it's actually just about as good at popping all armor over 12 as a TL Lascannon anyway. If you're dead set on the LC trade the MM for a Missile Launcher so you can still stay back at 48".
I personally don't like standard Terminators, especially not in BA since we have a lot of other things that work better, but if I were to take them I'd rather you take the assault cannon on them, for the same reason as your raven above.
Put sponsons on the Ass Cannon Baal, you're fine with leaving the Burna Baal nekkid as it's better to leave it cheap(IMO) since the HFlamers are generally overkill and it's so close it IS going to get blown up.
Give the Sang Guard a fist and maybe an infernus or two since you're pretty low on anti-tank, also give one of your Priests a JP and stick him with Dante and the Sang Guard. You can't have that unit getting eaten by small arms fire just b/c their ride got blowed up to early.