I regularly rotate through the Warlocks to keep them all pretty similar in flight. If you like the rim of the Wizard better I found the RFF wizards to be great upshot and putting discs too. I have a ton of them but the Warlock just suits me better right now.
I too fully agree with the crowd that it is totally a personal preference with no one answer. Putting is very tactile, if you can stop focusing on the putter and focus on hitting the target you'll become a great putter. Find the grip, rim, stability, and glide you like. Buy a ton of the same putter when you discover your favorite. Practice multiple times a week to get better. I'm trying to practice 100 putts every other day personally.