/Devices on a blaster, after the Smoke Grenade nerf.
I had a Dual Pistol/Devices blaster and the fun you could have with Cloaking Device, Smoke Grenade, Trip Mines and Caltrops, mixed with the solid AoE of Pistols made for an amusing 'dicking around' setup. Plus, Executioner's Shot with standard ammo as a finisher never got old to me.
This may be a personal thing, but I felt that Stone Armour on a tanker was underrated. Not Granite Armour, Stone Armour, the rest of the set. My Stone/Fire tanker used Granite purely as a panic button. And since my favourite pastime with him was hunting Carnies, it wasn't even a very useful panic button, given all the psi damage. Stomping around as a tiny agglomeration of all the toggles who just happened as a result, to be almost totally immune to the 40 or so Carnies that were stood around him being toasted to a crisp was just amusing as hell and cathartic payback for all the pain Carnies caused my other alts over the years.
'What's that dear, you're trying to drain my endurance? Sorry, Rooted, Crystal Armour and Minerals mean that's not going to be happening, and even if you do hit me with a drain, I've got Conserve Energy in reserve...'
(the Crystal armour NE +def meant that Dark Ring Mistresses very rarely managed to hit with Mask of Vitiation, Minerals meant that Psychic Visage from all the carnies being defeated around me rarely hit, and Rooted meant that any that did hit had next to no effect.)