My putting progression went through some stages, but I'm finally very comfortable where I am.
Started on Wizards and loved them. The bead fit in my finger quite nicely, and I loved the Supersoft blend. In fact, I still use these for my 50 to 200 foot approach game.
I then tried Judges and really liked the way they were basically just shallower Wizards. They're available in some very consistent blends, so that's a plus too. My affair with judges was short lived however...
I haven't seen anyone bring up P2s in this thread, so I will. This is a pretty big departure from the beaded style Wizard, but man do I love P-line plastic. The slick and firm blend gives me such a consistent release. They beat in so beautifully,, tacky enough to grab chains but still that amazing clean release. Now that I've been using them a few years I don't see myself swapping anytime soon. They compliment my hardish spin putt beautifully with glide and stability.
I think in the chalkier style plastics (like Supersoft wizards) I generally prefer a bead. In the firm slick plastics I don't care quite as much. To be honest I practice putting so much now that I just throw the putter at this point. The bead (or lack thereof) doesn't phase me. But P-line plastic has me pegged, I'm never looking back.