More new topics, eh?
Are you disappointed that there aren't many PMD manga out there? If you were to create your own, how would it be?
Yeah I am pretty disappointed about that, and the few that there are most people don't know about... If I had to create one, it'd probably follow Explorers of Sky's storyline, with Eevee as the starter (because Eevee) and... how about Riolu or Vulpix as the partner? Or Shinx?
Favorite Seed?
Either the Reviver Seed or the X-Eye Seed. The former because you should never go dungeon crawling without it- it's really, really useful. The latter because its effect is really weird- I found out what it did on accident way back in Red Rescue Team because I ate it, rather than throwing it at the opponent (it was called Allure Seed back then, though).
I really like the Pure Seed and EoS' exclusive Seep Seed, too.
Have you ever had any major difficulties with any part of any of the games?
Monster houses are always difficult. Mostly just early on when you don't have a move that hits the entire room/the tiles surrounding you, or if you don't have any good items.
Otherwise, Primal Dialga's battle always gave me lots of trouble- ate up a bunch of Reviver Seeds courtesy of Roar of Time. The big boss battle in Dark Crater gave me grief recently too, although that's my fault for not packing Chesto Berries, haha...