I virtually didn't miss a game home or away between 1990 and 2013 (a run that was broken by not going to Northampton), and for me it's very difficult to include any season post premier league as a favourite.
I'd pick anyone from three:
I loved the first year of the Premier League 1992-93, even though we petered out in the last dozen games. The start in particular was brilliant, I think we were unbeaten away from home until early November when we got tanked at Arsenal. The midweek win at Blackburn after Christmas was particularly satisfying, as was stuffing Liverpool and then Villa a week later on Boxing Day.
The Robbie Keane season, ok we didn't win away, but for me that was the most entertaining team I've seen. Scored goals for fun (at least at home) and having Palmer doing all the spade work in the middle brought out the best in McAllister - it was his best season with us by a country mile. Add Hadji and Chippo in there and we had a really good first XI.
1997/98, with Dublin, Huckerby, Whelan, Boateng et al, completely ruined by losing THAT penalty shoot out at Bramall Lane. Never forgiven Moldovan for missing that easy header 10 minutes from time, even though he did score the winner at Villa Park!! The run of 7 consecutive wins was brill, included 5-1 at Bolton and 3-0 at Palace.