The oldest flag still in use + the inspiration for all the nordic flags; England, Norway, Sweden, Finland etc.
old german flag,
Old french Flag ( not the white one )
Flags without stickers are the best.
Good flags: Danland, Germanland, Swedland, Finland, Britland, Frankland, Belgland, Russland etc.
Bad flags: Albania, Belarusia, Bosnia, Croatia, Liechtensteinia, Portugalia, Spainia etc.
Peru (nice colors, better red and proportions than in Canada but unnecessary symbol in the front)
Bosnia and Herzegovina