For me, this is an extraordinarily tough question. It gets even more difficult due to my inability to include any former Seattle SuperSonics, as I grew up a fan of the green and gold -- as well as occasionally red -- before the frachise's dismaying departure to Oklahoma City.
Anyhow, with regards to active players, my favorite guy to watch play the game is none other than Kirk Hinrich.
Unlike most perimeter players, his style of hard-nosed, yet smart defense is optimum in an era where hand-checking and bumping leads to foul calls on guards.
Hinrich, moreover, is capable of defending not only point guards, but also wing players -- both big and small -- which is an astounding quality to be possessed by a 6'3" guy. In fact, it's his most unique skill.
Lastly, Hinrich is versatile on offense and can fill numerous roles -- whether it's as a pick-'n'-roll point, a two guard who comes off of screens and hits jumpers, or a 3 who sits in the weakside corner and waits for the perfect pass to drain a spot-up three-pointer -- which shows that he's a real team player.
Oh, and when it comes to my favorite player as a kid growing up during the mid-'90s, here's an awesome highlight video to provide visual evidence as to the reason behind my choice.
P.S.: It was Magnum's idea to make this today's junk drawer, so he deserves kudos.