I see this kind of thread all the time, so with the kindest possible attitude I shall say the following:

THERE REALLY IS NO SYNTH, VSTI OR ROMPLER WHICH IS SUITABLE FOR ANY KIND OF MUSIC.

What people are really asking is "What is the best way to program basslines or lead lines or pad souns which sound like XXXX genre?"

Part of the answer does lie in certain instruments but only because the sounds used in a certain genre require that the programmer used perhaps 2 sorts of LFO routing or the sound had 4 oscilators in play...

therefore some synths are better at being able to reproduce a sound because they have the routing, osc functions or capabilities for it.

Sure, patch surfing is common amongst everyone - they're all looking for that sound that was used in this or that piece, but when you look at the artists in question you'll usually find that the most succesful learnt to program the sounds for themselves.

The answer?

Learn to program synths dave. It will make your music more interesting and original.

for my part i use the following synths

Korg Legacy Digital Edition (for pads and chord sounds)
Subtractor for bleeps and sqeeuks
Minimonsta for bass and lead
Korg Monopoly for lots of things... fun mostly.