My personal favourites, easy to fly, nicely modelled UK planes
Three RAF trainers
Tiger Moth Tiger Moth by Bill Lyons.
Open virtual cockpit makes "sightseeing" wonderful. Customisable period cockpit pinups!
Comes with float version for even easier landings.
If only I could get the engine cowling to close!
Climb rate just enough for exploring the english mountains at low level if you know the lie of the land.
Chipmunk FSDS2 DH Chipmunk by Rick Piper and others.
Virtual cockpit and animated crew. (Make sure you get the patch).
Provost Hunting Jet Provost
Virtual cockpit, con trails, animated pilot, easy to fly and land for a jet.
Twins
dragon rapidedragon rapidedragon rapide Dragon Rapide
Slow speed and good visability from virtual cockpit make for easy flying. 
There is a float version. The AA textures are a seperate repaint download.
Twins for the Scottish commercial routes - a little harder to fly, especially the DH6300
Islander Britten Norman Islander by Marcel Kuhnt with Mark Beaumont's Logainair repaint.
Virtual cockpit and animated ground crew.
The aircraft used on the famously short scheduled flight from Westray to Papa Westray in the Orkney Islands. (The install is a little complex).
Twin otterTwin otterTwin otter Twin Otter DH6C and DH6300
Used on the Glasgow - Benbecula - Barra route in the Herbrides.
The DH6 300 model has the Loganair livery. 
Twin otterTwin otterTwin otter the DH6C has the British Antartic Survey skid model and the Scilly Airbus model but no virtual cockpit.

Premaircraft website or look for dh6_bvvk.zip and dh6_gndo.zip

Screen captures often made with ActiveSky, VFR scenery, meshes, Scotflight and other addons.