Cumulus Support

Been reading a few threads on here.
I had a pretty awesome cumulus setup but my server had a catastrophic failure about 1.2 years ago.
I lost my VM and Cumulus install and it would crash every time i would use it. I followed then buy dropping my instruments smashing them everywhere.

So now i am back, i have a Rpi3 and ready to take off from where i left it.
I am hoping to basically plug and play my old installation for my webserver. (was running cumulus 1 with winxp).
Web server was php / mysql script that the eyeball avatar dude made! (there has probably been 50 updates since then)

My main question is what OS is everyone running on the PI? What's the most stable etc?

I run Debian Wheezy (V7) mainly because that is what I put on my first RPi / CumulusMX system - it worked and I saw no reason to change it to Jessie (V8) as it doesn't add anything I need to the system. I have a BananaPi under Wheezy also.

I have just started 'playing' with V8 on a Pi Zero - it won't run anything less - but I can confirm it runs CumulusMX very well

I just put my station a Raspberry Pi 3 (Davis VP2 wireless). It seems to be running well thanks to help from Steve and others here. jank's scripts are awesome also. I am about ready to retire my old Dell Inspiron laptop that was still running Windows XP. Cumulus ran well on it but everything else was as slow as molasses in winter. I copied over all my data and don't think I lost anything. I very nearly ordered a Meteobridge but so far I really like the setup with the RPi 3 and CumulusMX.