Flints is pretty good but every time I play it, I put up crazy high scores on it. It just isn’t a very challenging game to me.
NGG does nothing for me and I’ve tried to get into many times.
Same with WCS. It just felt like there wasn’t enough to shoot for on that one.
My pick is Fish Tales. I’ve my had mine for years and I still love it. Side note: it’s always the first game non-pin-head guests gravitate to.
Good luck!