It doesn't matter over what belt the feud is: to be good it just happens. Good feuds happen and bad feuds happen, it's just simple.
Plus when you have a guy like Chris Jericho in the feud, you know you're gonna get a good one.
In a process of reviving the Intercontinental Championship, the WWE decide they were going to have Chris Jericho and Rey Mysterio feud over it.
WWE, smart move. This feud would prove to be nothing less than stellar. The matches were amazing. The mic skills (especially Chris') were good, and the level of charisma was outstanding.
This all started with the 2009 WWE Draft. In this draft you had both Chris Jericho and Rey Mysterio go to SmackDown(with Jericho going to SmackDown being the biggest pick of the night of course).
On SmackDown, these two along with Kane and Jeff Hardy would compete for a contendership for Edge's title. Hardy won so that left Chris and Rey for a feud of their own.
Jericho would complain to Teddy over and over again about how he is being treated unfairly. Rey Mysterio would then move in and tell Chris to stop acting like a baby. This would spark the feud.
Their first meeting was at Judgment Day with Rey as champion and Chris as challenger. Chris would go on about how Rey is suppose to be a hero to kids, but that hero hides behind a mask.
So he promised to remove that mask for Judgment Day. Now everyone knows that for a Luchador to be unmasked is a big shame to him.
So Rey wouldn't let it happen. He would beat Jericho, retain his title, and keep his mask on.
However, the outcome for Extreme Rules was different. Chris Jericho would face Rey Mysterio for the title once again and just like the first time promised to unmask Rey. He did just that as Chris unmasked Rey while beating him, took his title, along with his pride.
Rey would use his rematch clause for the Bash as once again these two faced off continuing this epic feud. In this match Chris did in fact unmask Rey Mysterio, but Rey was wearing two masks so Chris was set up. Rey won that match, got the title back, and restored his pride.
These two would meet one more time for the title on en episode of SmackDown. Current Unified Tag Team Champion, Chris Jericho face Rey Mysterio for the title.
Chris would lose the match, but would still receive satisfaction after beating Rey up together with his partner, Edge. Then Ziggler came in letting Rey know who is next in line for the title.
This was indeed a stellar feud. Again it played into SmackDown being the best brand at the time.
I pray that this Sunday when Chris and Rey meet in the ring in the tag match that they will make it look as good as they made this feud look.