I've not been anything like regular at the oaks for quite a few years. However, unless things have changed drastically, you've got three basic types of water across the multiple lakes. General, Match and Specimen. The last I knew, the full on match pools (the ones at the back (north) of the complex) were reserved purely for matches. I've never fished them as my match days ended before they were even dug. The Oaks is the specimen pool and is a bit bigger, wider and deeper than a typical commie pool. The rest are much more typical commie fare. Though the size, shape, depth, and stock, varies between them, I'd struggle to suggest which might be better for a beginner.
Hopefully someone with better and more up to date knowledge will be along shortly.