I use Kratos and Raiden and spam Kratos for the most part. Raiden I can combo decently. Oh and sometimes during matches where I believe I have no hope of winning, I sit in the corner and T-bag until everybody in the match starts to T-bag. I get everybody to start derping around then kill them when their guard is down It works on almost any random. Sometimes I let them kill me, etc. Usually I get messages from them saying "good game" or LOL or something that shows they enjoyed our little phun T-bag fest.
Curb stomping a low tier raiden as heihachi. I just dont like raiden. I should have taken it a little bit easier on him though haha.
my other favorite is pulling a massive comeback win, but using Dr.Nefarious's stage hazard to win. It was like a 10 minute long match. I dodged sly's level 1 5-6 time, and then I got the win thanks to a bubble. It wasnt the most satisfying win out there haha.