Where are you guys at on your Heart Gold/Soul Silver playthrough?

Any suggestions for a good Battle Hall Pokémon?

Anything that has good Attack/Special Attack, and good coverage. If it's fast, give it a Focus Sash and you're almost guaranteed two hits. If it's slow, give it a Choice item (usually Scarf). Keep in mind that you can swap the Pokemon you're using as long as it's the same species, so if you need certain moves for certain types switch it up.

example:
Togekiss @ Choice Scarf
- Hyper Beam
- Aura Sphere
- Air Slash
- Shadow Ball

I'm using (still working on making this)
Infernape @ Focus Sash
- Close Combat
- Stone Edge
- Grass Knot
- Overheat

but i'll probably need Mach Punch over Stone Edge for some of it.