my favorite manual lenses:

Asahi Pentax Super-Multi-Coated Takumar 3.5/28mm

Asahi Pentax Super-Multi-Coated Takumar 1.4/50mm

Minolta MD ROKKOR 1.2/50mm (modificated for Canon EOS, infinity works)

Vivitar Series 1 2.5/90mm (known as the Bokina)

Meyer Görlitz Trioplan 2.8/100mm

Nikon Nikkor 1.8/105mm AIS

Carl Zeiss Biometar MC 2.8/120mm

TAIR-11A 2.8/135mm (last version)

Asahi Pentax Super-Multi-Coated Takumar 4.0/200mm

I use all those manual lenses on my Canon EOS 50D and my Canon EOS 5D Mark III

My favorite modern lenses:

Sigma 12-24 EX DG HSM

Sigma 1.4/35mm DG HSM ART

Canon EF 2.8 24-70mm L USM

Canon EF 1.2/85mm L II USM

Canon EF 2.8 70-200mm L IS USM

Canon EF 3.5/180mm L USM Macro