Outlaw Star is the only one that kept me sad for more than an hour though. Code Geass was just like it kinda fit so I couldnt really dwell too much on how sad it was.
man oh man, where do i start? i cried to eyeshield 21, even though its a sports anime, i cried several times for that like when they were trying to recruit monta or sena managed to get past rikku or they're getting emotional over the christmas bowl cause the guys r feeling some pretty intense emotions. i also cried to hajime no ippo cause ippo was helping with his mom's fishing boat and waking up at 4 fuking am and it looked so damn hard but he did it and it reminded me of my life a little. and my last crying incident was in gto when yoshikawa tried to commit suicide but onizuka saved him and told him not to do stupid shit like that again while a car is on fire in the background
Kannazuki No Miko
Ef a Tale of Melodies
H20 Footprints in the Sand
Those 3 are the only series off the top of my head that can cause me to legitimately cry. Naturally there are many more that can get me teary but not to the point of rolling tears.