Chris Christie vs. Rand Paul
This does present an interesting snapshot of the GOP currently.
Paul represents the ignorance and irresponsible fiscal extremism of the libertarian radical right and Christie represents the GOP Old Guard, pragmatic republicans who advocate responsible governance and pursuing policies based on facts and what works, not blind adherence to conservative dogma.
If Christie does run and wins Iowa and NH, it would be refreshing to see a republican presidential candidate not make that hard, ill-advised turn to the right when the primaries move to the South.