Currently it is Nikon 18-300 f/3.5 - f/5.6 VR lens on D7000 for everyday shots for its versatility in a relatively small/light package and I carry it everywhere I go.
But if I don't care about wide angle and telephoto reach, than my all time favorite was EF 24-105 on EOS 7D (it had much better image quality than the above Nikon Combo).
Of course for any other occasion when I care about the best image quality possible (within the gear I have) than EOS 5D MK III and EF 70-200 f/2.8 L IS II is undoubtedly the undisputed King.
« Last Edit: March 04, 2013, 02:40:04 AM by Rienzphotoz »
5D MK III, 16-35/2.8 L II, 24-70/2.8 VC, 24-105/4 L IS, 70-200/2.8 L IS II, 100/2.8 L IS, 40/2.8, 50/1.4, 85/1.8, 150-500 OS, 600EX-RTx2, ST-E3-RT, Rokinon 24/3.5 T-S, D7100+18-300 VR, YN568EX, 055CXPRO4+468MGRC2, 190CXPRO4+322RC2, Gorillapod Focus+496RC2, CamRanger, B+W filters, Konova K3/31.5 etc