Although Chikorita is my least favourite in terms of battling, but it's tied for 2nd w/ Cyndaquil in terms of favourite. I'm primarily a Totodile fan (if you couldn't tell from my pfp) I used Totodile in Silver, Cyndaquil in Gold, leaving Chikorita for Crystal. Turns out, there's a lot of Poliwags at night in the early routes in Crystal, Chikorita's not a bad choice imo.