The way I see it:
DotA: Has a devoted fanbase that isn't growing.
HoN: Is a less visually appealing f2p MOBA.
DotA2: Has this elitist vibe about it, and is more strategic as opposed to flashy.
LoL: Looks nice, easily accessible.
Smite: no
With the 2 top contenders being Dota2 and LoL, LoL has faster action because abilities do more damage, and it looks flashier. And it's free. It's just the best thing on the market atm for most MOBA lovers. When Blizzard finally gets their act together I'm sure Blizzard Dota will shake things up.
DotA: Has a devoted fanbase that isn't growing.
HoN: Is a less visually appealing f2p MOBA.
DotA2: Has this elitist vibe about it, and is more strategic as opposed to flashy.
LoL: Looks nice, easily accessible.
Smite: no
With the 2 top contenders being Dota2 and LoL, LoL has faster action because abilities do more damage, and it looks flashier. And it's free. It's just the best thing on the market atm for most MOBA lovers. When Blizzard finally gets their act together I'm sure Blizzard Dota will shake things up.