Super Robot Wars or Super Robot Taisen?

Currently we have a page for the Super Robot Wars franchise. But the two games that were released in North America are called Super Robot Taisen Original Generation and Super Robot Taisen Original Generation 2.

Axersia said in a recent thread that we should use North American names, since this is a US-based website. Does that mean we should use Super Robot Taisen as the name for the entire franchise? Or should we stick with Super Robot Wars, which seems to be the more popular name?

Anyone have any ideas for what to do with this?

First off, an official title always wins. So if the translated version is unofficial, all games should be listed under the Japanese title. But you've previously stated that the developers themselves use the English translation in some cases (I don't know which, so I'll just take your word for it), which makes the English translation an option too.

In this case though, even if Wars is more popular, I would still go for Taisen to be consistent within the series and the rest of the site. It's a bit odd how the 2 games that were brought over to the US use their Japanese titles, while all Japan-only games in the series use the English translation. And GB always lists Japanese-titled games under their romanized title, not the translation. It's also the official US title of the franchise, so that's one more reason to list it as Taisen.

EDIT: I also wanted to note that even the Tengai Makyou series, which has never seen a release in the US but has always had an official English title (Far East of Eden), is listed under its Japanese title on the site.

"The japanese name is Supa Robotto Taisen or スーパーロボット大戦 if you will... and it kind of translated into Super Robot Wars. Only  taisen is a japanese word in the original title. The reason the Original Generations games was released as Super Robot Taisen probably has more to do with that Robot Wars is a registered trademark already.

Having a look at common practises, I think for the GBA released games, leave those as Taisen and have the rest as Wars.