I liked 2006, I thought it was a solid year for wwe. For the people who say they hated 2006 because Cena was champion for most of it, than why don't you say 2005 where he held a championship belt throughout the entire year excluding a week (US Championship, WWE Championship)
2006 had great feuds:
-Foley vs Flair
-Edge vs Foley
-Foley/Edge vs ECW
-WWE vs ECW
-Kurt Angle vs Orton
-Triple H vs Cena
theres also:
-DX returns
RVD wins the WWE Championship and the mainevent scene is pretty much RVD, Edge, and Cena for a few months
Now, the worst year between 2002-2007 is definitly 2004 or 2005
2004 just didnt have enough star power and both brands kinda suffered. JBL had a boring reign, Raw was good, but a lot of pointless feuds like Eugene vs HHH, Eugene vs Angle, etc. But there was also some good things including Eddie winning the WWE Championship and Benoit winning the World Heavyweight Championship, and Evolution.
2005 just lacked direction. It was like the writers were writing the shows one week at a time instead of planning ahead. Things got boring watching Cena and Batista win every month, and there were tons of pointless stuff they did. To many quick fueds brought together, and other pointless things.
Personally, I thought 2003 was one of the best years in WWE. Things were exciting, the writers had everything come together and had long buildups before they finally put the wrestler in matches together, they knew where they were going months before it happened, and it was really the only year that Raw/Smackdown were both good and worth watching. Lesnar had awesome matches, and Triple H and Evolution were the top heels.