I had a TS10 with an AC15 reissue. Never really worked that well for me unless the amp was at the point of overdrive. Sold it and got a Fulldrive II. It was 'better' but again the amp needed to be driven.
I'm now using a 100w EL34 head and the FD2 sounds much better.
IMHO unless you are cranking your amp look for another type of overdrive.
I like a compressor used as a boost with low compression settings to goose the front end and light the amp up. Used to use a Dyna Comp with an ac15 a lot, got a Janglebox on the way. Used a Lovepedal Eternity with an ac15 a few weeks back along with a Keely comp and it was very cool
My take is that TS type pedals work best with amps that want reduced bass as the distortion levels go up, like Fenders and early Marshalls. Voxes and later Marshalls seem to do better with more full range OD/Boost pedals or fuzzes.
I found that some of the TS clones that claim to have more "clarity" work really well with AC30s. Also one with a clean blend, like the Sparkle Drive, IMO, work great. But the usual suspects: Rat, Hotcake, Timmy, tend to work the best still.
Tube screamers are tricky with VOX amps. My stereo rig is VOX/Fender, so I really love having a TS based pedal in there, but the only ones that have ever really jived with both amps are the older Fulldrive 2, and the Maxxon Overdrive Pro. Everything else matched well with the Fender but not so much with the VOX.
A Hot Cake or King (Prince) of Tone will definitely get the job done and not give you any grief. Treble boosters also soar through a VOX.
Edit: It's been a long time since I had a Sparkle Drive, but that might have been OK too. That was back when I ran just an AC30. I had a DMB Stellar Drive back then too and it was pretty awesome. Both of those have a clean blend which probably helps them adapt.
The Hotcake seems to be the go to with Vox amps. Otherwise, I like a good dirty boost that doesn't impart too much of its own tonal character, something with separate treble and bass controls is nice. The Timmy is a good choice with any amp that has a nice overdriven character.
So I guess this thread has incredible will to live.
My take is that it also depends on the Vox type amp you are using.
Unless really cranked,I find AC30's to be thin and excessively bright. An AC15 on the other hand thickens up at a much lower volume, especially the 1x12. Therefore a drive that works good on the AC30 probably needs a lot more bottom than one that works on the 15, and so on and so on.
I almost bought an AC30 once because I really like Rory Gallagher, but I couldn't pull the trigger. I tried one out at a guitar center once and it was just too trebley and thin sounding to me. Too much bite, icepicks, hurts my ears. Given I couldn't turn it up very loud in the store, but I rarely get the chance to play loud anyway. I mostly record these days. At least on guitar.