over the years I've owned many, many small cameras in the search for the "ideal" pocket camera....
My last, and favorite one was a Ricoh GR1/GR1S (had both) - sharp lens, aperture priority, and great LCD viewfinder confirming what you focussed on...
Other cameras I've had include...
Ricoh R1 - great camera, good panorama function - I killed mine by carrying it in my pocket for over 12 months without a case - so full of dust it struggled to move the lens in and out..but it kept on working
Minox EL etc...had a few of them - sharp lens - electronics very suspect....
Olympus XA - all mine have had great lenses (I've managed to drop 3), but the rangefinder spot does tend to fade a bit..
Olympus XA1,2,3,4 - all ok, but not as good as the XA
Rollei 35 - I've had a few - the best one was the LED with the"cheap" Triotar lens - which I found was sharper than the Sonnar
Contax T - nice camera, but I kept flicking the self timer switch by accident when I put it in my pocket, so when I wnet to take a photo nothing happened!!
Ricoh FF1s - a bit of a sleeper this one - styled like a Minox, but much more reliable...
Olympus Pen D series - these are all great - super sharp, full manual shutter speeds (meters are getting a bit old, but once calibrated they seem OK in most light conditions), and being half frame you get twice the shots per roll
Canon Demi - the original model is my favotite (and the most compact) - super sharp lens, programmed shutter - and twice the shots per roll..probably the other camera I'd consider as a pocket camera
Canon MC - super sharp lens, and when they work they are great..getting a bit old to trust now for day to day shooting..
Had a few APS cameras, but the film/processing let them down...
I haven't included various small rangefinders I've owned - Ricoh, Canon, Minolta, Konica hexar etc - all great, but not, by my definition, pocket cameras.........