George,
If you can afford it, I'd go for the 1° option - it gives you the accuracy to hopefully choose individual tones in a picture rather than having to pick relatively large areas to avoid "contamination" from nearby tones.
I have a Pentax Digital Spotmeter and now I'm used to it I find it's great - I used a Gossen Multisix for a while and with it's 15° sensor, it was virtually a waste of time apart from incident readings with the cone on.
I don't take flash pictures so that part of the metering's not important and I could use a grey card to do an "incident" reading if really stumped with the reflected placings.
It's possible to get meters with all sorts of whizz-bang features but find one you're comfortable with and can trust without needing the 1" thick manual each time you use it!
There are dedicated spotmeters from both Gossen and Sekonic and both are national debt jobs to buy. They also make combined spot / incident / flash meters at varying prices along with Minolta who have a good reputation but no longer in go apart from secondhand or the Kenro versions which cost an arm and a leg. Cheaper still are the dedicated spot meters and incident only meters. Could it be an option to get a dedicated meter of each - with both coming to less than the price of a whizz-bang version, e.g. Pentax spotmeter and Gossen Digiflash?
Andrew
Full Member of the Tearoom Appreciation Society - affiliated to UKLFPG.