Aurora DSP

This is a truly unique guitar amp plugin. It doesn't try to simulate 'guitar amp X' but rather gives you all the elements that make up an amp chain (input, preamps, EQ, IRs and effects) and lets you play with them on a single canvas. You're approaching your guitar tone as a sound designer rather than a guitar player, which yields some very different results. Plus literally everything is right there on one page. You can even cascade and blend several preamps and there's a (hidden) sub-octave feature if you drag the Rhino logo in the center.

Then for all the playfulness, it has some really deep pro features like tone matching and a smooth quad-IR morpher. Even the noise gate has deep settings that let you get some awesome glitchy torn notes.

Rhino really strikes me as possibly the most creative take on using amp simulation in a more 'out of the box' way. You end up sounding like nothing else because you approach it like nothing else. This is a must-have if you're into modern guitar sounds or just a tone explorer.

Mammoth is a wonderful plugin, very flexible so you should be able to get the sound you want whatever the style.