I play controller on PC, and my answer is: I use the expanded crossbar controls (l2+r2 and r2+l2) for easy access to 32+ abilities which is more than enough. If I need more there's the W bar (l2+l2 and r2+r2) for even more, but I opt to not use that because I'm the kinda person who would press the trigger once thinking o pressed it twice and misfiring something lol.