I've put about 25 or so games on Aerosmith and used to play TWD all the time in leagues. I decided last week to purchase a new pin and ended up with a NIB TWD. Don't get me wrong, Aerosmith is a cool machine. LCD screen, a neat little toybox, but in the end, it reminded me of Kiss. Start a song, shoot the lit shots and go for multiball.
Aerosmith is a great game, but nothing about it leaves me yelling at the machine and always being just "one shot" away from something awesome.
When I first started playing TWD, I honestly didn't like it, but we had one in leagues, so I didn't have a choice. Once I started putting games on it, I realized just how great it is. I think it has a great balance of being intuitive for people that don't play much but in depth enough for people that want to put up crazy high scores.
If you're a casual player, there is the standard "bash the toys and get multiball" approach. If you're a more competitive player, there is always the "save your X for the last CDC shot" or the "Stack Blood Bath, with Riot and Prison". I always walk away saying to myself, "If I just wouldn't have bricked that 7x shot to the CDC ramp while it was lit for end of mode and multikill."
I just can't get enough of that game!