Thanks for all the input guys. All the options really do seem to suck on hand 1 which in a way makes it interesting finding the best one. He had A4 of spades here and I just felt totally owned

Oskar, maybe you're right about the bet size rarely being a bluff, but FWIW, I have noticed a certain type of scared donk, typically a station attempt undersized scared bluffs as supposed to betting anywhere near the size of the pot. Don't know if anyone else has noticed this at the micros.