The only difference between socket 1150 i5's (i5 4xxx) is clockspeed, and possibly the configuration of the integrated GPU. A 4460 is clocked higher than a 4440, but lower than a 4560 and 4670. A few extra dollars gets you a few percent extra clockspeed, and thus a few percent extra performance.
The best value is usually somewhere in the middle, but depends on what's available for what price.