Thanks, Enrique. Not sure what you mean by distribution of meetings/term sheets. If what you are saying is which VCs or angels are most likely to fund, that is a really hard question to answer. It really depends upon your plan and what you are doing, so I don't think I could say "firm X gives the most term sheets."
In terms of your other question about recommendations, I would guess that if Reid Hoffman or Marc Andreessen recommended an investment to a VC firm saying they were investing, the VCs would take notice. However, getting time from either of them is difficult. I'd recommend getting a strong, well-connected advisor, and a similarly connected lawyer, and work closely with them. I hope this helps.