I may be in the minority here since I have never read anything negative written here about the UGLY preamp. I'm a huge fan of Chris Church's products, but in my opinion, unless you absolutely need the tiny size of the UGLY, I'd strongly recommend the ST-9100. The ST-9100, while not tiny, is still very small and it is easy to adjust your levels on the fly. With the UGLY this is practically impossible-you need to use a small screwdrive to adjust the gain pots and that must be done individually for each channel. To me, it seems that the ST-9100 is far easier to use unless you know before hand that the concert won't be too loud (such as acoustic) & that you will need the full gain that the UGLY provides. I love my ST-9100. I recently got an UGLY also and probably will wind up not using it much because the ST-9100 is so much easier for me to use.
Any of the Church mics are great. The CA-11 set sounds great (and has interchangeable card/omni caps) and the CA-14 is supposed to be even better (I have one but have not had a chance to use it yet).