Cheltenham vs Clarendon

• Clarendon thicker set width
• Clarendon has ball terminals compared to teardrop ones on Cheltenham
• Cheltenham is old-style compared to the slab-serif Clarendon
• The tail in the capital Q of Clarendon goes inside and out.
• The lowercase g in Cheltenham is closed.
  

Centaur vs Century oldstyle

    * Century Oldstyle as more weight than Centaur

    * Also, CO seems to have a taller stress

    * CO has tear drop terminals

    * The Centaur's capital Q, regular and italic, has a tail that goes below other characters.

    * Centaur has it's serifs unbracketed compared to COs

    * The $ sign in Centaur has a stem going down the entire spine, while COs just sit on top of the -shoots

Bookman vs Caslon 540

• Bookman set width is wider than Caslon 540
• Capital "J" in Caslon 540 goes down as a descender
• Two serifs on the capital "C" in Caslon 540
• type spacing is looser on Bookman

Baskerville vs BauerBodoni

• Baeur Bodoni's serifs are unbracketed compared to Baskerville's bracketed triangular serifs.
• Baskerville's lowercase "a" is only a one story compared to the two story one in Baskerville.
• Unlike Baeur Bodoni's lowercase "g", Baskerville's are not closed.
• Rather than a more geometric descender, the uppercase "Q" in Baskerville has a much more prominent descender.
• Some of the letters in Baskerville Italic (uc J, partially uc N, uc T, uc Z, Y, and &) lose their bracketed serifs for a more cursive look, while the Bodoni Italic's serifs remain the same. Also the waist in the uc Y of Baskerville Italic is curvy rather than angled.