it realy is whetever you like. take me for exampe. i like fire types the best. so my best Pokemon in pearl would be a fire type. but i like some grass types purly on the cool attacks.
it also counts on what you use it for. if you were soloing the elite you would have to have a very strong Pokemon. :)
my best Pokemon is probably hericross even though i said i like fire. say you liked water the best would be a red garidoss. if you don't no how to get that all you need is a shiny magikarp. if it was dragon type you might like a garichompe (sorry about all my spelling mistakes). Every single Pokemon on the hole entire game is amazing in a diffrent way.
for stater i would either go with piplup or chimchar
If you ask me, it would be a legendary thats stronger than Palkia
Pokemon mysery dungeon 2 and Pokemon pearl-diamond
depending on your view either arceus or mewtwo is best
That its Pokemon because Pokemon is cool and the adventure feels really like being a real trainer but on a DS/DSi.
the best Pokemon you can catch in Pokemon pearl is heatran
its pokeclone2
different Pokemon
its adae-6897641zo
31 i think
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i think that the best Pokemon you can ever have in Pokemon pearl is Empoleon or Palkia not rare^ rare^
groudon
a super rod is the best rod in Pokemon pearl/dimond/platnim