What are you trying to do? Feed them (i.e. you like them and are trying to provide food) or lure them to shoot?
If it is the latter, then you want whichever feeder makes them stay longer and gives you the best shot angle.
Mr. Squirrel Hunter seems to be doing exceedingly well with what looks like a hand made feeder. I love his accent and commentary style ... and his shooting. https://www.youtube.com/watch?v=_CyVb8ki39U
Takes his time, responsible shots and no rush whatsoever.