If you must thengo for the CLE. More compatible with a wider range of other M lenses, the Minolta range was restricted to 3, and the 28 didn't work particularly well on the CL.
The only real thing to recommend the CL over the CLE is that it is far simpler electronically, and if the meter goes, as it does quite frequently, you can use it as a robust manually metered rangefinder (provided the focus prism silvering hasn;t corroded orhas been re-silvered, and that you don;t want to use any m lenses more tele than 90) the CLE is by far the better bet, though forget minoltas 28mm ( as a letter in this weeks AP presciently reminds us)
if you do buy a CLE buy a couple of x700 or x500's on ebay for spares. The only reason you would want either a CL or CLE is compact size and/or novlety value. The best advice would be to buy a voigtlander (compact) or a real Lieca.
Neither would cost you all that much more. A CL or CLE could cost you dearly as parts are seldom available.