definitely caviar for me...
I had lamb and I sold it as i got freak out how easy it could get impression mar, crease, light fingernail scratches, etc... not including what people say about when it happen to get "the rain".... So it means you wouldn't get much chance to use it if you care for these issues (yes I do).
However, with caviar or with whatever leather, I thin it's good to always look after it the best as u can though. I still clean , wipe after use, stuff and put in dustbag, box when store/not in use.
Good luck with your choice
ps: i just saw cracked patent in reissue range...soooo beautiful , I don't feel it's boring as normal patent (i am a bit pedantic and have to always wipe or polish it to mae sure there is no finger print!!! so that's why i'm not a big fan of patent but cracked patent u don't really see much of this nasty fingers print