Since my opponent has taken the center position (1,1), I'll place my O in the top-left corner (0,0). This is a strong strategic choice because:
1. It gives me potential winning paths along the top row, left column, and the top-left to bottom-right diagonal
2. When responding to a center move, taking a corner is generally a good strategy in Tic-Tac-Toe
3. This position maximizes my flexibility for future moves and forces my opponent to defend multiple potential winning lines