I would get TWD Pro. It’s a fun, unique layout with great code. It’s enjoyable with friends because of the shorter ball times and it has that one more game draw that TSPP can lack because of longer ball times.
Iron Maiden and MET are both awesome games, but MET ball times can be on the longer side. IMDN is a killer pin, but the music isn’t for everyone and the game lacks toys.
If you didn’t mention toys I would lean towards IMDN.