I have shot thousands of rounds through both as well as a P-09. I would never say anything bad about any of them (unlike some other guns i own). Great triggers, no failures or malfunctions. I don't think it is a question of better gun but how well each fits your needs.
Do you carry with one in the chamber? If so, are you comfortable carrying a striker fired pistol (10C) or do you prefer DA/SA or safety?
The 01 is fantastic but heaver. Great for competition but if you carry all day or are getting older and weaker then that may be a problem. I find that i can hold steady on target longer with the lighter polymer guns.
The 01 and 09 are larger, both in the barrel length and grip to trigger. If that fits you body OK , great. I am a little smaller and find my hand fits the 10 better so i get a better grip coming out of the holster with it so i get a faster and more accurate first shot. Also, being smaller the 10 is easier for me to conceal.
Lastly, there are more sight options for the 01 and even the 09. Cajun is the only place if can find upgraded sights for the 10 that i like.
Net, for me, i carry the 10.