i started four F2P's on mannoroth horde and alliance this past summer. i got AGMs on all of them, in the process i got to see alot of the twinks or fail wanna bees that have no patience in getting a AGM. i have seen many 19's on manno, they are scattered in various guilds.
yeah AGMs can be rough on mannoroth but i was able to get mine with no help. overall the alliance side is what makes it tough since they have tons of achieves whores, or 85's that actually go there for the chest and gold. i asked one 85 for the trink, he offered it for 250G, i told him i was F2P and he said sorry he was vending it.
FB's were like 3+years ago, i haven't seen 45 min ques in a longtime, merging of battlegroups fixed that.
problem with twinking on manno for some reason is that twinks play ill geared or without AGMs. they either give up too fast or even when they get 1-2 AGMs then they fade