I'd hold off on Drakengard for now. Play Nier first to make sure that you're ready for Kenji Ito's Wild Ride. Nier is a competent action RPG that's pulled up by the strength of its characters, music, and voice acting.

Don't play Solid 4 unless you've beaten the other Metal Gear Solids, 4 really banks on you recognizing things from the older games for its emotional notes to hit. In particular, the final boss isn't nearly as amazing if you haven't played the other games.

Get Vanquish. It's like a third person shooter on speed. You have literal rockets strapped to your thighs that allow you to slide around all over the place in slow motion shooting everything. At one point the main character gets into a pummel duel with two robots at once. If you play Bayonetta, it's that but a third person shooter instead of a brawler.

Play Bayonetta, love it, and give all your money to Platinum Games forever.