I would say the Hy-Road is one of the best benchmark balls that you can buy. Great cover/core combo with R2S Hybrid and the Inverted Fe2 Core, and it's versatile on medium and some medium-heavy patterns. Definitely a great house shot and tournament ball.
From there, I would go with the Frantic. Same cover as the Hy-Road, and the N.O.S. Core packs a lot of punch for a lower end ball. It's great when the heads start to go and I find myself using these two balls more and more lately with great success in multiple houses. Both the Hy-Road and Frantic are great balls for the money.
From there, I would probably look at a pearl Tropical Heat, and then go down to the Tropical Breeze when the lanes are a desert. The pearl Tropical Heat won't have as much overall hook as the Frantic and will be better than the Frantic when the lanes really start to blow apart. Then, the Breeze comes in if you need a super mild reactive.