I just finished Claremont's brief stint on Wolverine's first ongoing. I have to say it's not his best work, but it's still pretty enjoyable. I didn't like the second arc as much as the first, but there were some highlights.
Karma got to play a pretty key role in the book, Lindsay and Jessica continued as supporting characters, and the whole subworld of Madripoor was better explored.
Hulk (as Mr Fixit) guest-starred, which contributed to some of the best moments of the series so far. Logan is usually the more serious character whenever he teams up with someone, but Mr. Fixit brought a fun side to Logan's personality that's not explored so much. He basically spent an entire issue trolling Fixit and tricking him to do what he wanted.
Issue #10, the last of Claremont's run, is one of my favorites so far. It's set on Logan's birthday, as his memories from the day Sabretooth killed Silver Fox come back to haunt him (does anybody know in which series she died?). I love the Wolverine/Sabretooth rivalry, so this was a lot of fun. Claremont also set up Jessica and Lindsay's future role on the series, but I'm not sure how this was handled after he left. The book only had a steady creative team again when Hama took over at #31 ( I think). Everything seems to point to the fact Claremont planned to stay longer, he didn't wrap a lot of the plotlines he started.