It's easy if you know what you're doing,AMR,NHS,will do little,I'd take scrapebox over those 2 (and I have themself) if you're starting to build links.
You want decent PR links,you can filter the PR in scrapebox.
Web 2.0's with great content,fact is if you biuld up using crap you're easily knocked down.
I'd use AMR,NHS for lower tiers,maybe.I haven't use AMR for a long time,I love how fast NHS gets a site indexed.
Numbers mean nothing ,find phpbuilts web 2.0 list and start building web 2.0's there is another link in that thread that shows you how do it properly.
What bothr me is you jumped on the "rank overnight" as if there is no work involved,not a good sign.
Build quality links I can imagine you blasting the daylights with AMR and letting NHS loose and getting nowhere,web 2.0's and buy scrapebox and use it properly,do not start ordering 20k scrapebox\xrumer blasts it's not how it's done.