hmm, after reading your post i would go with Guardians or Metallica. great layouts that shoot well. Lots to do but easy mulitball (bash groot / bash sparky) with some more difficult mulitballs to get to
Metallica is not really mode driven where Guardians is.
Id play the games youre interested in a bunch and see what you like. Make sure whatever game you get to make sure it has the newest code, as Guardians has come along way from launch code wise. if your distro has sat on the games for awhile it will have old code installed.
you can adjust ball save timers on games and make certain objectives easier to accomplish in the settings as well as close up the outlanes, etc and then adjust as you get better. or set it up nasty and get better