I remember listening to Muse when Showbiz came out in 1999, and it was one of my favourite albums, possibly ever. And they were only around 19 when they recorded it, which is pretty amazing when you listen to it.
After that, Origin of Symmetry came out and I was blown away by the guitar sounds and the general production of it, David Bottrill, who produced AEnima, recorded it, and you could tell. Another great album. Great artwork too.
After that, they seemed to climb into Matt Bellamy's arse and sort of die there.
Post-Origin Of Symmetry, I don't think they've really made much worth listening to. I've bought all their albums, bar The Resistance, and been more disappointed by each subsequent one.