IFR/Flight Following -- ATC Preferences?

Departing cross country out of the Minneapolis area in severe clear, I will
usually ask for either flight following or will file. I depart from KMIC, which
is under the 4000 foot shelf of the MSP bravo airspace.

For example, Friday I am going from KMIC to KGPZ, which is a couple hundred
miles to the north.

I am curious what TRACON and Center guys think:

Do you prefer to have me on a full IFR flight plan? (I always cancel when I
have the airport in sight if the destination is non-towered.)

Just advisories so you know who I am and what I am doing, but you don't have to
provide separation services?

Or do you not wish to hear at all? (Hopefully not, because I like being in the
system both for traffic info and in case of emergency.)

TIA