I've always thought it'd be really cool if your mother turned out to be champion; pretending to be a retired trainer as she watches her child grow up and finally you get to face your mum endgame. Kinda thought that might happen in B/W/B2/W2 but Iris was a nice surprise. --- Grass types are wonderful!
Other...I would want the champion to be completely unexpected like Iris, strongly related to the plot like N (he was champion for a bit), and be badass like Cynthia. --- 3DS Friend Code: 2637-9811-0553 Add me for Pokemon X/Y, PM me with your friend code if you did.