Stargate is "so bad it's good" for me. Though I must admit that as I've got older and heavier, the brusing on my shoulders after riding it gets worse.
I can see why they only ever built two of them... and making the second one seated rather than standup did nothing to ease the pain!
Back on topic, no flat ride, regardless of how good it is, is ever going to be a worthy replacement. And modern steel mice - *spit* - have a footprint that must be about three times the size of Mouse.
I wonder, those of you who use No Limits, what would happen if you attempted to make a modern steel clone of the exact track layout of the old Mouse... but maybe with a vertical lift (or maybe even an elevator?) to solve the "duck now or loose your head!" issue that the old one had? That could free up a short stretch of track at ground level between the station and the lift to do... something with.
Of course, it would still be a steel mouse and would therefore suck. I think it would still need to have tiny one person cars rather than four seaters.