I really like Blitzball. It's definitely not what the intro scene of Tidus playing in Zanarkand leads you to believe it might be, but it's still fun in its own way.

Yeah, the speed strategy works well. Brother, Naida and Datto are all great for this. Nedus too, but that's not till Level 99.

The need to
bait opposing players and lure them becomes even less important if you get Jecht Shot with Tidus, the enemy defence might as well not even exist. Even more so with Jecht Shot 2.

Another easy way to dominate would be to grind up your levels. Just enter a tournament and hog the ball, passing it safely between everyone, keeping the score tied. Because it's in tournament and not league or exhibition, you get unlimited overtime as long as the scores stay level. Do this for 15 mins or so for every tournament match before scoring the winning goal and your levels will skyrocket, especially early in the game.