I pretty much have a fondness for any tag team in WWE from the late 80's to early 90's.
Hart Foundation, Rockers, Demolition, Legion of Doom, British Bulldogs, Brain Busters, Powers of Pain, Natural Disasters, Steiner Brothers, Money Inc., Power and Glory...like I said, basically them all.
I am a huge fan of tag team wrestling. All different sorts of teams appeal to me for entirely diverse reasons. For practical purposes - such as shortening the list to something manageable - I'll limit this to WWE:
Legion of Doom, The Rockers, The Funks, Dudley Boyz, London & Kendrick, Edge & Christian, The British Bulldogs, The Fabulous Rougeau Brothers, Hart Foundation, Steiner Brothers, Hardy Boyz, Money Inc, The Bushwackers...you know, I should just stop. Otherwise, I'll end up listing half the teams.