I'm currently playing Pokemon Brown, and since it's a Red hack, I think the right place for posting my team is here.
Currently I have 4 badges and a team consisting of:
:t002:Lv.27 (Tackle, Poisonpowder, Leech Seed, Razor Leaf)
:t074:Lv. 23 (Tackle, Defense Curl, Rock Throw, Selfdestruct)
:t024:Lv. 27 (Wrap, Dig, Giga Drain, Bite)
:t064:Lv. 26 (Teleport, Confusion, Disable, Thunder Wave)
:t043:Lv.14 (Absorb, Cut)
Yes, except for Arbok, my Pokemon have horrible movesets, but up to now everything has worked fine, even though I had some major problems at the econd badge (Ice). At the end, only Kadabra was left, but luckily it killed the Lapras.
Usually I try to Seed and Poison harder enemies with Ivysaur and then wear them down with Arbok's Wrap. Or just plain old sweep them with Kadabra. Geodude is more of a filler that I use because it covers some of Ivysaur's weaknesses pretty well.