Which faction is more favourable for caster dps in PvE?

[Wolfrig]

I guess this comes down to which class gives better support to caster dps in raids - paladin or shaman. Paladins have a nice mana regen blessing, as well as a threat reduction buff. Shamans, at least that's what I gathered, are better at supporting rogues and fury warriors.

This is just my opinion, I'm not a very experienced raider so I might be wrong. I'm thinking about rolling a caster (haven't decided which one) and I would just like to know which faction class helps the caster dps more.

[Ana]

Caster dps don't need blessing of wisdom really. Salvation is the deal maker here and it makes casters stronger on Alliance, simple as that.

[DrearyYew]

Shamans, at least that's what I gathered, are better at supporting rogues and fury warriors.

Salvation > Windfury

[varth]

Salv + Kings > soe + wf

[Undertanker]

Alli also have +5% int for gnomes giving a larger mana pool.

[pasur]

alliance - gnomes 5 % int and salv

horde - trolls get berserking

both are solid but alliance is better