Queen - No. I still like Queen, but they've not been a favourite for a long time.
Extreme - No. They put out Waiting For The Punchline (has its moments, but not many) and more recently the lamentable Sausages of Rock (one decent song).
The Wildhearts - Absolutely. Not quite as much of a favourite as they were at the time, but definitely still a favourite. It's just a shame they continue to be dysfunctional as a band since Ginger's non-Wildhearts output can be a bit limp wristed at times.
Metallica - No. At one time I could play my way through at least the rhythm guitars for Ride The Lightning, most of Master Of Puppets and significant portions of AJFA, Kill 'Em All and TBA. Nowadays they bore me half to death. Plus, the more I found out about Hetfield the less I liked him, Newsted quit (and every time I see Trujillo I see him in Suicidal Tendencies garb and feel like he's out of place in Metallica) and I've long since got over Hammett as a lead guitarist.
Megadeth - Yes. Post-Marty albums have been variable in quality (I don't own Supercollider...), but I still love everything up to and including Risk and there's still been some great material since then.
Def Leppard - 50/50. No Steve Clark, no consistently high quality material, but Clark wasn't the be-all and end-all of DL (he was just the secret sauce that made them special) and I continue to enjoy the majority of their output, when they can be bothered. It's just a shame that when he takes on early Def Leppard, Joe's upper register now sounds like he's singing through a wet flannel.
Queensryche - Mixed feelings. Had they gone up in smoke after Empire I would forever point at them as being my favourite band. Ever. However, Tate marginalised Michael Wilton which produced three decent but lacking albums (Promised Land, HITNF and Tribe) and after DeGarmo quit (again) Tate tried to drive the band off a cliff, culminating in the asinine Cabaret tour and subsequent disgrace that was Dedicated To Chaos. I almost don't regard Q2K, Mindcrime II, AS and DtC as Queensryche albums and I don't own the latter two.
Dream Theater - 50/50. I absolutely adored I&W and Awake, but FII killed my enthusiasm at the time. SFaM and 6DoiT put them back into my top 3 favourite bands at the time, then ToT, SC and BC&SL (I really like 8vm) caused them to drop right out again... ADToE was a big return to form, but I can't bring myself to buy DT12 given certain lyrics that're on there.
Iron Maiden - Yes. Though there was a long period from NPFTD through to Dance Of Death when they absolutely weren't (I was still avoiding anything Bruce was on when Brave New World was released as I didn't know he'd started singing properly again from Skunkworks onwards at the time).
The Almighty. Nope.
As a teenager I hadn't discovered Rush (I don't think Kerrang! mentioned them once at the time), Devin Townsend was just Vai's singer prodigy, Type O Negative hadn't made enough of a mark on the UK and the modern incarnation of Amorphis was a long way off.