I would recomend trying Podbot mm and YaPB, but if you want bot vs bot, Try a combo of Podbot mm vs. e[POD]Bot.
Almost all bots here are working and they work very well.
Please don't confuse my opinion as a fact.
Podbot mm is good for noobs, as the bots skill is lower than other bots, I sopose because of botaim 2.
YaPB and e[POD]Bot are good for an extremely good challenge
(atleast once a week for me.)