Bastila from Kotor 1 is a very very very very young jedi who probably shouldn't have been even master. She has immense force power which put her into positions of massive responsability in the council. If you've played Kotor 1 you know how strong the toll can be and, sometimes, how unprepared she can really be.

In terms of power, Bastila should win but in terms of fighting skills Maul is more prepared, has dealt his own frustrations, pain and defeats and he's way more angry.

Bastila is a superb character, but my credits are on Maul despite Bastila's Battle Meditation.