Ive seen alot of posts about this topic so I thought I'd share my exlerience. I have played every show since 14, and have always used pure analog. I switched to zone this year and the difference is amazing. It takes a little while to get used to, but its so much more fun and rewarding. For anyone thinking about making the switch it helps to use zone with analog instead of buttons at first.
I have been struggling with showdowns on pure analog so I decided to try it on zone and I won easily 2 times in a row. I won't go back. You just csnt beat being able to fully control your pci. Like I said, just my 2 cents for anyone thinking on switching.