Lycan and Balanar Are two of my favorite Strength heroes in Dota. Both Heroes are built for chasing the enemy singling them out and killing them, or even take on a few at a time.
Balanar is the vampire type. He is a strong hero and has a very good set of spells, Void (slow dps), Hunter in the night (passive Increase MS and AS at night), Crippling fear ( Silences target and causes them to miss attacks), and His ultimate ( i forget the name) witch makes it night time for a certain period of time at no mana cost. When it is nighttime Balanar is a very tough opponent to defeat if played well. He can chase his enemy with his already fast movment speed, slow them and silence them too. A tip to anyone who tries him out, try to save his ultimate for nighttime because you dont want to make the day longer, but as soon as night hits, spam his ultimate as soon as its off cooldown to make the night last longer. This works well because there is no mana cost.
Lycan is the werewolf type. Lycan is able to summon two wolves that help him kill enemies. He has a passive spell that increases movment speed to both himself and any minions under his control (wolves, even the courier), he has a spell called Howl witch increases all friendly units attack damage, and his ultimate which turns him into a werewolf. While shape shifted, he has max movement speed at all times (ie. immune to slows and even when voodooed he can still run at max speed) he also gains life and has the ability to make critical strikes.
Both Heroes are very strong and can do a lot of damage. Although i think Lycan has the slight advantage, If the player playing Balanar is smart, Balanar can win due to having a longer period of time at high attack and movment speeds.
Some good items for both characters are a battle fury, a Cranium Basher, and a Heart.
Overall both are very good picks and have a high threat against the enemy.