I'm not sure but the one I remember being liked most is my first post in the thread "post a picture of yourself :)" with over 50 likes. (I'll find a link later but I'm lazy)
http://itsjerryandharry.com/members/itsjerry.3/?page=32 My profile post from my old account ''Animoes'' had 103 likes, lol.
The thread is currently removed, but it was my health problems thread. It had like, 70+ likes? I can't really remember.
I got 10 likes on some drawing I made for Saul on the profile picture thread http://itsjerryandharry.com/threads/r-profile-picture.42935/page-3 My drawing skills have really improved since then, but I guess it still looks good :>