I absolutely love this pairing. It’s like the pairings like from A Walk to Remember and any other teen movie that puts the bad boy with the good, straight lace girl. Yes, a stereotype, but it all works out for me.
It also reminds me of Ron and Hermione. People think Finn is Ron, but, really, Ron isn’t THAT stupid (I love Finn, but c’mon, the boy’s stupid). People underestimate him; he’s brave and tough, and I think his brain power is closer to Puck’s than to Finn.
Really, I just think Puck and Kurt would fit well together. I’m too tired to explain better than that. :/