Not really a useful counterpoint. No one would argue that Obama's a poor speaker, just that more exposed dialogue these days can make even the most eloquent of speakers seem clumsy. Fortunately TR and Honest Abe didn't have to worry about Politico & co.
And they didn't have a live TV press briefing every morning. Or even a non-live press briefing every morning.
On the other hand, they did have to worry about pamphlets asserting various things about the moral standards and marital status of their mothers.