tdi 200 or 300 better for dz?

[Chris Scott]

Cant seem to find this spelt out on the web but I'm told is 200s are better, even if they will be older.
Who would car to spell out or add to the pros and cons below (not getting too much into the well known the t-belt business) - and are they significant enough to actively seek out a good 200 over a 3?

What I'm told so far is:

"200, simple, fast, powerfull, very adjustable with big intercoolers, ecconomical, strong...

300, 'refined' but lots of silly problems with alternators, t belts, heads cracking, water pumps - use a little more fuel, faster though, but not by much"

True or false?

thanks

Ch