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Around 220 hours (or approaching) on Pearl I think, though a bit of that was probably having the DS sitting while I did other stuff at the same time (plus I soft reset a bit)...I got emerald and green shortly before it or about the same time so I haven't played them much.
like, 80 hours or so on my diamond. i don't really play that much because most of the time i'm just making teams, then scrapping it and coming up with new ones. i do have quite a few of level 100s though. 11 i think.
In the 70's on my Pearl. Only breeding I do in here is for D/P Pokes and I've restarted the game a few times to make sure I have all of the TMs and important items. Now I'm spending tons of time cloning the TMs and items so when I start making trades I'll have more than just good pokes to offer. XD