Analog film photography and cameras

I have a question regarding lenses and film formats.

Is a 90mm lens on a 6x9 camera as unsuited to portraits as the 35mm equivalent (roughly 40mm) would be, for example will I give people that big nose look?

I ask because I've been wondering all day, it will have a larger FOV so may not have the compression a 90mm lens for 35mm format would have OTOH would it keep some of the compression because if you work backwards a 50mm lens for 35mm format will still not give any more compression at APS crop even though it gives a tighter image.

I'm so confused :(

http://www.oresteen.com/69lensdata.htm

So a 115mm lens on 6x9 camera, gives nearly exactly a 50mm standard view as per 35mm camera.