I'm not sure if this is gonna get taken down for being controversial or whatever but, I'm interested so, I'll give it a shot.
For instance, I'm a Pokeshipper and a Contestshipper so some opposing ships for me would be advanceshipping, pearlshipping, morpheusshipping, etc.
Morpheusshipping, I admit, one-sided canon, I don't think anyone could deny that, that was pretty obvious on Angie's side. Same for ummm...Anabel x Ash(What's the name, again, I'm drawing a blank here...), undoubtedly one-sided canon.
Any specific hints you'll 'fess up to either, is also what I mean, you don't have to think your opposing ship is canon but, any hints you'll admit?
Advanceshipping: Ummm...Oh! When Ash like put his hands on May's shoulders or whatever, yeah, I won't lie if that was Misty Pokeshippers would go gaga. Also, in the 9th movie, the only hint I think was in that, and hey, it was a pretty good one, when Ash puts May in the tube thingy to ensure her safety, yeah, I was jealous of that :p That's all I got for advanceshipping.
Those are a few of mine, what about you other shippers? Advanceshippers, any Pokeshipping/Contestshipping/Pearlshipping/Negai/etc hints you'll confess? And, I'm sure you get the point. I said some of mine, what are some of yours?