His first run was better by far. Plenty of classics in that period.
His second run had a couple of good years at the start, but the mid 90s was for my money the worst period of LotSW, the show became formulaic (open with Compo irritating Nora, Foggy boring a stranger with war stories, Howard interrupting Clegg with some plan to see Marina), and just not as funny. Thankfully the arrival of Frank Thornton injected a new life into the show.
Plus I'm not sure I like the character as much in the second run, the Walter Mitty fantasies just don't do it for me. In his first run he was very much the leader of men, coming up with schemes to get involved in, but in the second run, i just find him a lot more of a pathetic, rather sad character.
I think sad and pathetic is a bit harsh on poor Foggy, I felt on his second run he was a bit more happy go lucky and less 'stiff' so for me it is his second run. Its funny how peoples views differ as the 1990-97 summer wine era is my favourite era. With (for me) lots of great episodes, stop the bath (with Foggys speaking clock impression) defeat of the stoneworm, the glory hole and the most powerful eyes in West Yorkshire to name but a few. Not forgetting the christmas speicals of that era as well.
I even loved his war stories as well and boring everyone to tears, he even convinced himself they were true ;D ;D and it gave a good episode in ordeal by trousers with Foggys wonderful Highland dance at the end ;D. I was sad to see Foggy go in 1997 but Truley was a very good replacement and his debut in there goes the groom was a triumph.