Super Resin is a good polish with a certain amount of protection, (not a lot mind and not long lasting) Ive used it a lot and it really is good stuff.
Extra Gloss is a sealant for over the top of the SRP ^ or UDS (below)
Ultra Deep Shine is a polish 'for use on black and dark coloured cars suffering from excessive swirling, fine scratches or holograms'. (from the website)