I'm baffled by the huge array of fixings for use on plasterboard walls, e.g.

Fischer Plasterboard Plugs LDF and HDF

Rawlplug Unu

Fischer High Performance Universal Plugs

Then there are more complex looking things like:

Self-Drill Plasterboard Fixings, metal and plastic

Spring toggles

Metal Plasterboard Anchors

I've seen a few of the regular posters in here recommending Rawlplug Uno
but are any of the plugs designed specifically for plasterboard any
better and are the more complex things worth it for heavier items - I
imagine that plasterboard itself isn't very strong so a stronger fixing
can only help a little though I suppose the spring toggles spread the
load a bit but even so...

These things also seem to be classified as light, medium and heavy with
little indication of what is considered light, medium or heavy which
doesn't seem very helpful.

Any advice greatly appreciated, e.g. would you trust a couple of
Rawlplug Unos to keep a bathroom cabinet on a plasterboard wall?


Thanks,

Gareth