currently, coinbase has bitcoin priced at 2651, gemini 2635, pooloniex 2565. Usually coinbase price > gemini > poloniex. Was wondering if it mattered where it was sent
I understand that you like to have the highest possible price for your coins, but a higher or lower price doesn't say anything about the exchange in regards to security, functionality, accessibility, etc. I would advice you to avoid Poloniex since they strictly work with USDT
[1]. Gemini and Coinbase (GDAX) are both perfectly fine.
[1] USDT, or Tether in other words, is an altcoin that was meant to hold a strict 1:1 value ratio with the USD, but this whole thing is flawed since it experiences minor volatility, and thus the whole purpose of its existence has gone to waste.