By most broad definitions Hackett's albums and singles place him above Banks in terms of chart success. Each have penned very catchy solo songs, some of which were singles, that under different circumstances could have been hits by most definitions but obviously weren't. Profile, brand, promotion, radio play, whatever factors there were meant they didn't reach that special milepost. Both have proved themselves skilled writers so it shows how hard the business of hit songs, however you define it, can be.
That seems like a fair summary.
More noticeable than hits now is that Steve seems to have an ongoing musical presence, consistently producing albums (even if as has been observed in other threads, some of the recent ones are rather less memorable), collaborating on other musicians’ projects & touring - apart from during pandemics. He seems to be contentedly settled into that round of visible activity. Whereas apart from the upcoming Genesis tour we don’t really know what Tony’s being doing. There’s been 3 classical albums in about 20 years & a short classical piece for a concert a few years back, but no sort of consistent musical activity - although in fairness to Tony, the winner of the Not Doing Much Musically for Inordinately Long Periods Competition must be Peter!