TES2
Hammerfell+High Rock
HUUUUGE map, but quite boring and 99% of dungeons are randomly generated
TES3
Vvardenfell (don't believe the title, it is only half of actual Morrowind)
Small map, but seems bigger because of content and lack of fast travel
TES4
Cyrodiil
~2 times bigger than TES3 map, but more boring and inconsistent to lore (Cyrodiil was supposed to be rain-forest-ish area)
TES5
Skyrim
Around the same size of TES4, but seems bigger because of content and mountains
I personally like Skyrim more than Vvardenfell at this point
Hammerfell+High Rock
HUUUUGE map, but quite boring and 99% of dungeons are randomly generated
TES3
Vvardenfell (don't believe the title, it is only half of actual Morrowind)
Small map, but seems bigger because of content and lack of fast travel
TES4
Cyrodiil
~2 times bigger than TES3 map, but more boring and inconsistent to lore (Cyrodiil was supposed to be rain-forest-ish area)
TES5
Skyrim
Around the same size of TES4, but seems bigger because of content and mountains
I personally like Skyrim more than Vvardenfell at this point