I'm choosing column 2 because it extends my current two-in-a-row (at columns 3-4) into a three-in-a-row threat (at columns 2-3-4). This creates immediate pressure on my opponent and forces them to block at column 1 or develop another strategy. This position also gives me potential diagonal opportunities in future moves. While column 5 would also create a three-in-a-row, column 2 provides slightly better board control for future plays.