Not surprisingly, BDP nails this one,
Little Village, Possibly the most promising supergroup of them all, released that? It's not bad at all, but it is an absolutely pedestrian album. I like it a fair bit, but great it ain't.
I'm not sure that any of The Replacements' albums are great. Several are really good, but all have some dead weight. I think Westerberg's solo albums were probably more consistent and overall better records.
The Pentangle, with two spectacular guitarists in Bert Jansch and John Renbourn, had lots of great music spread over a bunch of very good, but IMO not great albums, too.