Eliwood vs Sania - I... guess? Thinking he needs a crit and she connects a status before the crit happens, but could be utterly wrong.
Eliwood vs. Poco - A Killer crit ends things here and there, and Poco can't really buff his way out of trouble from that threat.
Eliwood vs Scythe - Simple.
Sania vs. Poco - I guess I'll buy Dhyer's hype? Granted, they're not dealing much damage to each other as is, but.
Sania vs Scythe - Sania can't really chip through the ID safely. If she tries to stall with chipping, she will get overwhelmed.
Poco vs Scythe - However, I think Poco can. His buffs should ensure he can withstand Scythe's pressure.