Yes, it isn't hard to get 10 ft reach, but try to get more than that. With a large size character weidling a chain or lance, you have your reach.
But even just looking at 10 ft reach, look at what melee weapons get most use on optimized characters? Why hello there spiked chain! Why hello there Lance.
Reach>All on a melee battlefield control/tank character.
Fire Emblem Optimizer and Game Balancer (apparently) in the Playground
A note on using my Fire Emblem rules:
Originally Posted by Kallisti
"Reason itself is fallible, for logic must account for all the crazy **** wizards keep doing."
Harry Dresden Avatar by Deuxhero