Not too different
These 2 models will be quite similar. They have a quite a lot of sail for the length and weight-making them good lght air performers (for cruisers), and somewhat tender as a result-this does not mean they are not suitable for windy conditions, but you will want to shorten sail sooner than you might with other makes and models to keep the boat moving well (you slow down and go sideways if you sail a boat in an overpowered condition), on its' feet and comfortable for passengers. I view this characteristic as a good thing, since it is much harder to make a heavy underpowered boat perform in light conditions than it is to keep a light, powered up boat goig in heavy conditions.
The boat will be at it's relative worst in breezy reaching conditions due to a shortish waterline and tender nature, but good all around in light-moderate on all points of sail. It will be sensitive to weight in the ends, so to the extent possible try and keep the heavy stuff near the center of gravity-this will reduce pitching in a seaway. This is actually true of almost all boats, but the 28's maybe more than others.
Hope this helps,
Cheers,
S