Can't all those topics be merged together? I think that would be preferable.
I've now finished Super Mario 3D World, minus replaying it for the four character specific stamps that require me to replay the entire game four more times. I'll do that someday, but I stuck with Mario for my first play through, only switching when I had to in order to activate a character specific switch.
I think my tally for 2015 is as follows...
-Command & Conquer (PC; NOD and GDI campaigns along with all special missions)
-Command & Conquer: Red Alert (PC; Allied and Soviet campaigns)
-Super Mario Bros. (NES version; Both quests)
-Super Mario Bros. 2 (Japanese Famicom version; Just worlds 1-9 as Mario, but I'm in the process of replaying as Luigi and working towards accessing worlds A-D)
-Super Mario Bros. 2 (USA NES version; Played as Princess Toadstool)
-Super Mario Bros. 3 (NES version)
-Super Mario 3D World
I see a theme...