The Happ Ultimate should be had under the trade-descriptions act...Ultimate it is not. Best to forget it.
The Happ Super is a good stick...for 8 way games, but like most 8 way sticks, it doesn't cope too well with 4 way games.
Ditto for the Ultimarc J-Stick....great for 8 ways, not so good for 4 ways.
The Supers and the J-Sticks will have to be changed between 8 and 4 way from under the panel too.
The T-Stick Plus sticks offer the best of both worlds - great 8 way, and good 4 way - the ability to change between 8 and 4 way from the top of the control panel is inspired. Having said that, its 4 way action, whilst being good, cannot compete with a dedicated 4way stick...if you want the minimum of fuss, and less cramped control panel, and an easier time hooking up the controls, the T-Stick Plus sticks are a great compromise.
Check out the Joystick reviews section here:
http://www.retroblast.com/hardware.htmlAs for playing 4 way games with a 8 way stick...it can be done, but a lot of the time, in my experience, it can be very frustrating...if you intend to play alot of 4 way games, get a dedicated 4 way stick, or a T-Stick Plus...
These are only my opinions, others may have different experiences and recommendations - Joystick performance is very much down to the individual...if you can test the sticks first, or have the luxury of making a test control panel, to make comparisons, so much the better...