2000 Civic SI or Acura CL 03?

Hi, im buying a used car, and i need some help from some car owners that had either one of the cars 00 Civic SI or 03 Acura CL 3.2 NON TYPE-S

So let me give you some facts about both cars, and hopefully i get some usefull feedback.

the Civic SI is year 2000, it is a clean title, and has 74k miles. No mods, all stock. I would like to know how long can it last me and whether the parts for it are expencive or not.

the CL 3.2 Non type - s is also a clean title, has 104k miles. no mods, all stock. BUT my friend told me that these cars are crappy on the transmission, IS THAT TRUE? and also the cost of the parts.

PLEASE help and all the answers will be helpfull! thank you once again!