I vaguely remember Edberg from when I was a kid due to the fact that one of my older sisters is a total tard of the guy, so I grew up watching his matches but I didn't really learned to appreciate him till I was 14 or so, I also watched some matches at the Barcelona Olympics but I wasn't really able to appreciate all the technical aspects due to my age
My first own tennis love was Patrick Rafter, I was a pre-teen when I saw him for the first time (circa 1995-1996), classic S&V unlike the other mostly-serve people of that time (Krajicek, Ivanisevic, etc), needless to say I bawled my eyes out in Centre Court in 2001; I also liked Alex Corretja a lot and have good memories of him and Ivan (his brother) in Barcelona
I was never a fan of either Sampras, Agassi or Hewitt but I did like Safin, not as much as I do Fedal but he was definitely in the top tier of my preferences.
How did I discovered Fedal? I ended up watching Roger's first pro GS match due to the fact that I was a Rafterfan back then and they played in the first round of RG 1999, but I didn't really become a fan of his till RG 2002. I discovered Rafa in a challenger in Segovia in 2003