[Publius]

They stopped minting half dollars for general circulation in 2004.

I'd like to go to an Oldies But Goodies design.

For the one cent coin, assuming we really need it, go back to the Indian Head design.

For the five cent coin, assuming we really need it, go back to the Charles Barber design.

For the dime, I'm partial to the Seated Liberty design from the pre-Civil War era.

For the quarter, the Standing Liberty design had terrible relief and wore down quickly, so I'd go for the Barber design.

If he need a one dollar coin, I have no problem with the Sacajawea design.

[frogjerk]

What’s wrong with George Washington? Keep him as the only one on any coin.

[Jim Noble]

I favor a radical redesign:

Ten cents
Twenty-five cents
Fifty Cents
One Dollar
Two Dollars
Five Dollars

[gundog]

...the Standing Liberty design had terrible relief and wore down quickly, so I'd go for the Barber design.

The cupro-nickel version might be a little harder, but with modern machinery handling coins, they get chewed up pretty quickly, regardless.