This poll is partly about what kind of tennis people like, as it is usually with these things.
No result is determinative between these two and to pretend otherwise is a bit silly.
Tsonga seems to have an extra gear at times but how that makes him better when he has more very bad losses is just a question of what one prefers.
No. Ferrer has nothing over Tsonga.
Not even consistency. The myth that Ferrer is more consistent than Tsonga is, well, a myth. All it takes is for Tsonga to live up to his seeding in Madrid and he will have more ranking points than Ferrer ever had at any point of his career, meaning a more consistent year than Ferrer ever had.