stagea seems more roomy than a legnum.
easier to mod the stagea, parts can be used across the nissan range
gearbox in legnum is suss and expensive to fix once broke
modding the stagea is cheaper (ie 1 turbo on the 2.5 stag vs 2 for the legum = less room in legnum to get hands in, etc)
for me, stag wins hands down. looks boxier than a legnum but in my eyes thats a more 'sleeper' look