If it comes down to concerns over the differences in the triggers, with a little judicious polishing the Tanfo trigger can be very sweet indeed. Ask Josko at Double Tap Sports to try his; it's insane. The tanfo triggers will always stack just a little bit on the DA stroke right at the end (not necessarily a bad thing), whereas the CZ tends to do the opposite. However, it's kind of a tomato v.s. tomawto thing, so once you are used to the feel of the pull on either gun there's no real advantage to be had there. Both guns have excellent SA pulls so that's a wash. You'll have a learning curve and tuning phase with either choice, naturally, and both guns might need some sort of trigger smoothing at some point to tune to personal taste, but that's to be expected in any high volume IPSC gun. It really depends on how fussy you are, and how competitive you are or intend to be. You may be fine with either trigger right out of the gate so in that case there would be no added cost.
Tanfos are higher end guns and have a more features than CZ's out of the box (checkering for instance, adjustable sights, mag well, etc), but they do cost more. The polygonal barrels are accurate in the extreme. The Tanfo's Stock II's were designed around competition, whereas CZ's were designed around combat, and adapted to competition.
Bottom line; you are comparing between what are probably the two best choices for Production division, so you probably wouldn't be disappointed with either choice. Following the adage, "always buy the best you can afford," I would say Tanfo if you have the money and CZ if coughing up the extra dough is just too painful. You'll end up happy either way. Whichever you choose, I do suggest you save yourself some headaches and get the gun tuned by someone who knows how, and then just go have fun with it.
Good luck!
R