I would rather meet Lord Parashurama if I was qualified to!
But unfortunately I am not qualified so what to do? Better continue on the path of Bhakti-yoga and try to serve the Vaishnavas.
If Ashwathama was Lord Shiva, I don't think what he did was a "divine lila." Lord Shiva doesn't perform acts like that. And Lord Krishna wouldn't punish Lord Shiva, who is so dear to him like that.
Perhaps Ashwathama was born by the grace of Lord Shiva, but I am having trouble accepting him as an incarnation.