I have a CZ52, plan on getting a TT-33 sometime in future. The Cz is more intersting from a mechanical point of view. The Polish Tokarevs are probably the nicest version. The recently imported Toks have a cludged up safety but on the Polish version it's not too bad. Gun-Nut answer: Get both! Actually, get a Cz, a Polish, Soviet, Hungarian, Yugo (the Yugo Tok has a longer grip & mag that hold 1 more rnd than the standard) & Chi-Com Tokarev. Plus a Hungarian Tokagypt (9x19 Tok with funky grips made for Egypt). Could get kinda expensive.
If you post this question on some gunboards you'll come across an obnoxious internet troll ClarkMag who claims that you'll put your eye out with a CZ because he has managed to blow a few up by repeatedly stress testing one with his cludged up overmax ++P handloads. Everywhere online that the CZ52 vs TT33 discussion comes up he barges in with his chickenlittle doom&gloom (he must Google daily on this subject). He never seems to offer any pix of KaBoomed Cz's though..... He has actually been banned on a few boards for this behavior.
If you're wanting something that can also do concealed carry, home defense duty then get a Makarov.
Both the Cz & Tokarev have a major problem in that nobody offers defensive ammo in 7.62x25. 7.62x25 fmj has _way_ too much penetration for self defense. Something like 60"+ in ballistic gelatin. Perfect if you live in a bad neighborhood with brick homes, criminals who wear kevlar or attack in a single file line of 5-6 guys.