A 'strut' isn't a 'coil-over'. A strut is a type of suspension design. I can think of at least two 'strut' suspension designs; 'MacPherson Strut' and 'Chapman Strut'.

A MacPherson Strut (don't know who MacPherson was) is the type of front suspension fitted to the vast majority of modern road cars, from Datsun 120Y, Holden Commodere to Porsche 911, BMW etc (etc. etc. etc. etc. etc....).

In essence a Mac Strut is a double wishbone suspension where the length of the upper wishbone has been reduced to zero, which means that the 'camber curve' of a Mac Strut tends to be inferior to that of a good double wishbone design, and thus for racing and 'performance apps a Mac Strut tends to require more static neg camber.

A Mac Strut is an inferior suspension design (in principle) to a double wishbone suspension, but is generally used in preference due to it's simplicity, cost and ease of packaging into the chassis (no need to allow room for the upper wishbone). Double wishbone is superior, but Mac Struts can be made to work very well.

A Chapman Strut (designed by Colin Chapman of Lotus) is the same as a Mac strut except that the 'lower wisbone' is formed by the fixed length drive shaft (not a dedicated suspension arm). Since the drive shaft forms part of the suspension linkage, the Chapman strut was exclusively used on the rear suspension, and the drive shaft location tended to limit the designer's freedom re suspension geometry. AFAIK Chapman Stuts were only used to a very limited degree with some racing cars, but are no longer used at all.

Any damper / spring where the damper and spring can be removed from the car as an assembled unit and where the spring fits outside the damper is a 'coil-over', with the exception of the spring / damper incorporated into a MacPherson Strut. All Hondas not fitted with Mac Struts have 'coil-overs' as OE.

The aftermarket manufacturers seem to have successfully managed to hijack the term 'coil-over' to mean their products in particular. There is no in principle difference between what are commonly known as coil-overs (aftermarket) and the coil-overs fitted OE. The inclusion or not of an infinitely adjustable spring seat doesn't make one spring / damper a 'coil-over' and another not.

CB7_OWNER, I strongly suggest Koni dampers and seperately sourced springs to suit. The basis of any suspension is the damper, and by far the best you can buy are Bilstein or Koni. Bilstein are better, but more $. Koni are excellent and less $. The rest are more or less rubbish, unless you're paying real money for specialist racing units such as Penske or Ohlins etc...