
Originally Posted by
Werthead
It's a replication of a problem in the books, that Renly and the Tyrells are tightly allied together (Renly married Lord Tyrell's daughter, although this was a sham marriage because he's gay) and the Tyrells provide Renly with his manpower, but their factions aren't strictly unified together. I think one previous idea was that the Tyrells and Renly would be just one faction, but that would give all of the Reach (the most fertile land on the continent), all of the Stormlands plus two of the strongest castles in the land (Storm's End and Highgarden) pluse the second-biggest city (Oldtown) all to one faction, which would be pretty unbalancing, especially as their most obvious enemy in the area is relatively underpowered Dorne.
An alternate option would be to make Renly part of House Tyrell and give Stannis the Stormlands, which would also make playing as Stannis a bit more fun (he is way too weak at the start of the game, although the same is true in the books) but doesn't replicate the books too well. Although my argument is strongly that where sticking with the books means having less fun, we should go with not sticking with the books.