HI
Ive have both G3.5 and FS-1.

G3 has tons more airplanes available, adn you can fly online with other players, which is great.

FS-1 feels much more solid when you are flying the planes, and the games shooting bottle rockets and dropping bombs on targets is great. Also it is much easier to see the runway for approach in fs-1. g3 you have vertually no idea where the runway is when you are flying.

if you have a powerful computer, both should run great, I have a dual core processor with 1 gig of ram and either of my sims have any lag.

For only one sim, I would select G3, due to the online play and all the available planes/fields.


Have fun and enjoy the hobby

Bill