There are your cold weather tights (thick, maybe lined) and your cool weather tights (much thinner).
I've had no problem wearing cool weather tights under some nice bib shorts. I've ridden them that way for years and have had no chafing problems up through 2 1/2 hours.
At 6'5" with a 36" inseam, leg warmers don't work for me.
John Wilke
Milwaukee