Jaina solo vs Count Dooku

Neutral ground

Sabers

Force

All out

Battle 2. Loser gets a plo Koon

Dooku wins

Team wins

Do they? Is Jaina+Plo superior to Anakin+ObiWan?

Nope.

So I take it you consider Plo a weak link?

He's noticeably worse than the others as duelists, yes.

Plo is a skilled duelist but he isn't on Jainas level much less dookus level. Dooku is the greater of the three and he can easily dispatch plot with his skills.