I went with the Chargepoint
https://www.chargepoint.com/drivers/home/
It has awesome smart features, integrates with my residential utility company to provide accurate usage and daily/month cost breakdowns.
I also broke a piece of my cable by stressing it accidentally and they shipped and replaced and no charge.
I've been happy and impressed with support.
Of course i wanted a smart home charger so it was easy pick. If you just want basic charging i think i was looking up basic 30amp ones from Schneider, GE and i think costco had a good deal on ones in Canada for ClipperCreek/SunCountryHighway(Canada).
Not surprised that ford dealer pushed Aerovironment... they are the ones that ford uses but my dealer had a hard time sourcing when i kept asking and they were well over $1000 here in canada... i said forget that as it didnt offer anything other than basic charging at that time with no smart features.
EVSE choice should not affect warranty.