Depends what you're after, if you want a steady away daily driver with decent power then get an 8v, but if you want a steady away daily driver with good power then get a 16v.

The 8v runs out of puff at about 5-5.5k revs whereas the 16v picks up at about 4k+
Ignore any b0llocks about 8v having better lower down torque as this has been disproved and there is (or was) a power graph showing a rolling road for both cars.
If insurance is ok then I'd always go for a 16v, but you'll find that these may have been thrashed more than the 8v.
Power graph below
