I sometimes use this team now as i got itachi 5star:
X - Tobi - Main (skills 3-3-2-2-2, summon snake)
itachi - gaara - X
X - X - X
Team is really annoying. Super tanky with evasions. Rate of winning ~70%.
Still, i play on a server onpened not so long ago. i suppose we dont have much people who can counter it yet. Exceptions are rare teams of healers that make my damage minimum. Thats the only team i found usefull with Itachi in it for earth yet.
I thinks this line up is good for me atm. Nevertheless, overall in all servers it may be average.