Before all the MoP gear for 80 and 85 spreading out the bosses through the instance made things much easier to handle especially because you didn't have to deal with Conflag and Remote Toy at the same time. Nowadays I wouldn't bother with this even on a fresh 90 depending on class and spec.
Ashes of alar - 1 KILL
Rivendare mount - 1 KILL
Karazan mount - 1 KILL
Ravenlord mount - 3 KILLS
Onyxia mount - 11 chars farming her for 10 months.
ZG Mounts....... been farming it on 2 chars for since release. /WRIST
Here's my (silly) tip: make yourself not bothered about getting a mount, and it will drop. Over the years this is how I have seen my mounts drop haha, obviously it's down to RNG, but the mounts I want I have not got, the mounts I have thought "yeah that would be cool, I'll go kill it" I have got.
I.e., I want Anzu and the ZG raptor horrendously badly, I have wanted Anzu since TBC, and I have never even seen it drop before. It's such an old mount now, a lot of people have it, but I want it. And it never drops. Then I thought about soloing Kael'thas, maybe 10 weeks in it dropped. Same with ony, didn't expect it, it dropped. Got bored one night, solo'd UP once and the protodrake dropped haha.
It's silly I know... but just stop yourself getting hyped up for the mount. I rage every day I kill anzu now, I want that mount horrendously bad and I'll never see it :P
Chronic Sufferer of A.D.H.L.A.S. (Attention Deficit Hey Look A Squirrel)
Garrosh would wage war against the ocean for not being made out of orcs.
That's how I felt when I did my KT kill for Ashes. I'd been doing it every week for a long time, and that week I'd totally forgotten about it. Thought I might as well do it even though it never drops (at 2:30 AM on Wednesday, 3 hours before server maintenance), ran in there and it dropped.
Yea it's random, I got mine on the 9th kill.
But on the other hand it took me 8 years to get the f*cking eye from Ragnaros.
Like 7~ attempts for me, and then on the 8th attempt:
-.-
Ony's mount took forever though.
AchaeaKoralin - Are you still out there? | Classic Priest
It took me a while average seams to be around 50 - 60 kills though i did it 3x a week for a while i think it took around the 70 mark for me.
I am at around 50 or so kills, no luck yet. However, it if it makes you feel any better I've been farming Glaives every week for over a year now and I have seen 7 off-hands, 0 main hands.