Let's see, Digital Monsters or Pocket Monsters, I'd say digimon.
I just always found that digimon, while being 1/4 length of pokemon and still decreasing, had a better plot and developing characters
while pokemon is the same at the start all the way to the end. No character development. I know there was but the characters that did just got kicked off and pretty much disapeared. Also the fact that ash looks the same now as he did at the beginning of the series( exept his cap) scares me.
Time for some random useless trivia:
-pocket monsters is the english version of the name pokemon (poke=pocket,mon=monsters)
-the show is called pokemon in the states
-while in Japan, it was called pocket monsters