i have falken ziex 512s for my daily driving tires and they are still looking quite good even with my race alignment. they have a soft sidewall which give a nice and comfy ride but grip isn't the best (better than stock tires though) but i got these tires for daily driving and not autoX/track. they grip well enough for freeway on ramps etc. etc. where you aren't pushing 10/10 (you shouldn't anyways). i think they are pretty damn good for their price.
the falken rt-615s are one of the grippiest steet tires out there but if you drive super hard on them (autoX, track) then they will wear out pretty fast. but if you just daily drive on them they will last quite a while actually (like 50k-70k miles depending on your alignment) they have a stiff sidewall which is nice when cornering since it makes the turn in feel more crisp. they are actually the grippiest when they are about the cord.
my friend had kumho MX. they lasted quite a while too but not as grippy as the rt-615. they have a medium sidewall stiffiness. not quite soft but not quite stiff as the rt-615
hankook rs-2 are pretty nice but they have a softer sidewall than the rt-615 so when you corner it doesn't feel as good as the rt-615 but they grip pretty well for their price.
so...it depends what you are looking for in a tire. if you are looking for a daily driver to last you a while then i would suggest the falken ziex since they are cheap. or you can get falken rt-615 but might have to spend more money but the grip is there when you want to go for a spirited drive on a canyon or take ur car to autoX / track.