I meant, which faction is better to play as against REAL people online?
I haven't played yet, so I can't say anything. First, I'll complete the single-player campaign, then read the manuals, then the FAQs, and only then will I play against people :)
Added 2 minutes later
On the very first turn, I placed a poisonous cloud over his formation, it covered all units and lasts until the end of the battle, dealing 580 damage each turn.