I think the best 100 seater would not be a gtf. It'd be swinging a prop. I wish Embraer would straighten the wing on the E190 and throw a 8 bladed prop on it and say here ya go!
Passengers don't like props you say? Well passengers don't like tons of middle seats on a 180 seat airplane that only has a 1L door and is way too narrow for 3x3 seating either but that hasnt stopped us from buying them anyways.
The best 100 seat range jet is the 717. Getting the 717 is like marrying a hot and great girl who has a kid from a previous marriage where her jerk of a husband ran off with the fat girl at the grocery store check out vs marrying a Brasilian or Canadian mail order bride you never met but has promised you everything you could ever want once she arrives- but she is probably a meth addict who is impossible if not dangerous to live with. Good luck with that.
That's my best Colin cowherd single sentence styled analogy.