Spellcleave or melee cleave? for levelling and gearing mains

[Dangerhank]

Hey,

I'm going to main a warrior (and control the 3 dps) and have a friend on a priest dungeoning with me, our current predicament right now is should we go;

Melee cleave:
3 warriors, retri (or just another warrior) and priest
Concerns: Certain bosses, like baron rivendare and the effectiveness of their damage at a higher level with gear from dungeons only

or spell cleave:

1 warrior, 3 mages (or 1 warlock) and priest
Concerns: how effective will multiboxxing 3 mages while levelling, i have a feeling you won't be able to do the massive pulls consistently (i'm not a super pro multiboxer)

Our goal is to effectively farm all 5 man content for gear, and later on farming things like strat live and DM for gold

Any ideas / feedback would be highly appreciated