After some back and forth comparing, I switched the Axe (Ultra) as primary setup for worship almost 3 years ago, at least when there is a good PA to plug into, which is usually the case. I think the Standard Axe would do everything I need too, but the extra features in the Ultra are nice to play with.
Prior to Axe, I played weekly using various preamps with good success - Triaxis, JMP-1, and Studio Pre. You can run using the record outs, add a bit of eq, and they sound pretty darn good, or I still run them with a 2/50/2 now and then when the PA is limited. I can get some musical qualities I prefer with these that still elude me with the Axe. Then again the Axe has some unique musical qualities of its own, just different. The Axe is usually just more all-around flexible and easy to use when you have a good PA.
I've also experimented with various modelers including POD, GNX, and even the relatively new GSP1101. These can work fine for background rhythm work, but the Axe is much better. This is particularly true for single note stuff in the higher register - good test for any modeler. I would actually prefer my Triaxis, JMP-1 or Studio Pre over these other modelers. These other modelers can be good when someone needs something quick to plug into - pre-dialed in.
Prior to all this technology, I used Marshall and Peavey tube amps mainly. I still keep some of this stuff. I fired up my DSL100 just yesterday trying to dial in my updated firmware in the Axe. Back in the 80's I mostly used an overdrive pedal into various tube amps. The big new technology for me back then was a GP-8. This was way before I played worship. While still a great reference, the problem with the traditional setup is they can be a bit much for worship imo and there are the volume and stage hassles.