Meh, if I were to choose a Digimon to be paired with...DORUmon, Veemon, Guilmon, Agumon or Kudamon. Or Guilmon X and Agumon X.
That suits me...yeah, Wizardmon. Don't ask, I just feel he suits me. If you ever read about Wizardmon, it'll explain why.
If I gave Shady Guy anything but MetalGreymon, he'd kill me. Heck, I just know he'd be Agumon given the choice.
Shadowfaith...Silphymon. She'd definetly want Silphymon.
Typhlogirl, MetalSeadramon, Puppetmon, Piedmon and Machinedramon. 'Nuff said really.
Undisputed_seraphim...DORUmon and Ryuudamon. Because they become Alphamon Ouryuuken Mode. I can see him more as OuRyuumon, because then they would work with Alphamon, rather than be him.