Commonwealth Stadium in Edmonton, probably only Mosaic in Regina compares to awesome time for a CFL game. Also love old ass Ivor Wynne in Hamilton, but mostly cause I've played on that field.
Ralph is a below average stadium , but the atmosphere is amongst the elite of the NFL from what I understand.
Gillette was a fuckin shit show and a half, but I'm partial to the one time I went cause it was greatest day in my fucking life.
Ford Field is a nice building, alright place to go, nothing too special.
From what I've learned in all the stadiums, fields, arenas I've been to, it really doesn't matter all that much how nice the place is. The atmosphere is really that's all that is relevant.
A shitty atmosphere in a nice building doesn't usually make for a great time.
A great atmosphere in a shitty building can usually be a fucking blast. If this wasn't true, the Bills would have left Buffalo a decade ago.