KOF XI was the first SNK game I really got into and is by far my favorite (Granted KOF XIII is warming up to me quite a bit). The tag system made it really fun and greatly helped pressure and mix ups while saving shift could save you from potential infinites or 100% stun combos (didn't save you from Vanessa's infinite but eh). I admit that some of the characters could have been tweaked. KGO teams all over were a testament to that but still overall a great game.