I think Williams is being judged by his teams performance rather than his own. I appreciate it's not all about stats but according to stats he's had a better season than Sneyd.
Warrington have been poor but as we know due to performances over recent years, if your pack isn't doing the job, Thurston wouldn't stand out in the team.

In fact Williams' stats stack up well against Lomax and Smith's too.

We all heard similar stories at the time. A definite case of ego before country.

I seem to remember him making his 'post issues comeback' against Widnes in the JPS Final at Burnden Park, or was that Andy Greg. I think he had a wobble as well for a while back then. Major egos in that team that Maurice did well to tame.

Nope
That was Gregory the year after - He was on the Bench that day and Ged Byrne played 6 - Greg came on 2nd half and supplied the pass to Hanley to win the game - It was Jan89 and Monie tells the story that Greg sat in the Tunnel sulking at HT and the Brass Band had to walk around him!!!
Also the same week that Widnes had announced Jonathon Davies signing

Ellery was in dispute early 88 and made is comeback for the semi final at Burnden Park against Salford IIRC in a bit of a Mudbath.
(Also - it was the game were they took a Photograph of Gill lifting Edwards over his shoulder at the end of the game in celebration and it won Sports Photo of the year or summat like that).

That's the one I'm thinking off (Jonathan Davies signing), tough win at Burnden. Couldn't remember if it was Hanley or Greg.

And then those players from other clubs were usually on their own.