I would prefer there to be no term limits whatsoever.
I strongy diagree on that. The term limit is one of the things I like best in the US political system.
Perhaps you know that in Germany, we once had a 14-years-chancellor (Adenauer) and even a 16-years-chancellor (Kohl).
I know the difference between our parliamentary democracy and the presidential democracy practized in the USA, but I tell you, every government - even the best one - becomes tired and arrogant after such a long time and starts thinking that their interests are identical with those of the country.
Stay with your term limits, it worked good since the 1950s!
If the people get tired of whomever they keep electing they can simply boot him out.
Like FDR should have gotten booted out, but didn't. Sometimes you just can't wait that long.