Those five (or six if we count both Cole's, don't know how different they actually are) are the characters I want to play the most. I will probably play three of them seriously but I am having trouble deciding which ones.
All of them are top tier (coughbrokencough) except for Jak, so you can't go wrong with any of them. --- This is quite possibly the worst user on GameFAQs: http://www.gamefaqs.com/boards/user.php?=2426382
It really depends on what kind of style you prefer. Good Cole would probably be a decent starting point because he is probably the most well rounded character in the game. --- "Wow, it went from a fairly innocent topic to bestiality in less than ten posts. That must be a record." ~Incendius