my outlook on an EDC blade is this:
An EDC blade is all about options, the more the better.
If you can find a partially serrated blade that still offers the options of a straight edge (ie. large belly to the blade before the serrations start) then i would go that direction. same when arguing tanto vs. drop, or spear-point. the best choice in my opinion would be both (enter XM-18 Spanto).
although the Spanto isn't for everyone you can see my point, the more options the better. if you can find a partially serrated blade with a big enough belly to act as a plain edge, but still get the option to use the serrations on the really nasty cutting (as to no dull your plain edge) then i would lean more in that direction.
So, as far as my personal opinion goes...some knives i carry with a partial serration, some i don't. a very good friend of mine sent his XM-18 to Tom Veff so he could put his Veff serrations in it (to my friends specified length of course, around 3/4" worth of serrations). IMO that is an excellent choice for an EDC, it could handle anything you may encounter.
a few examples of what i mean:
ZT 0300 series - great with serrations due to the re-curve and large plain edge belly to the blade
3.5" XM-18 - only comes in plain edge but if you can, getting serrations put in it is excellent due to the long plain edge before the serrations would start.
Spyderco Delica - no serrations, not enough plain edge
Emerson CQC-7 - IMO it doesn't matter because to me a traditional "tanto" point isn't very useful, so if you're going to get one might as well get all the options
just like anything else, there is a designed purpose for all these options. for an EDC you want a very good "all-around'er." "it's better to have and not need, than need and not have," comes to my mind when thinking of an EDC knife.
i'm no longer in the military so i don't need a full on "tactical" design. i'm more on the utilitarian side of the fence for my day-to-day life now. i cut A LOT of shipping labels, mail, boxes, vegetables, paracord, etc. so, i like a blade profile that's easy to get to the tip, has a good long plain edge, and depending on the blade..serrations for rough cutting. i like mid-szed to larger blades (3.5"-4"), and very corrosion resistant materials. ease of maintenance is also a big decision here. if you're going to use the knife a lot then you don't want something that's going to dull easily, but you don't want a steel that takes a long time to sharpen either. that will be a compromise that you'll have to determine for yourself. weight isn't an issue for me so i won't comment there, but also something you should look into.
my EDC's are:
Duratech 20CV 3.5" XM-18
Crusader Forge FIFP/Metro (4" S30V Blade - 5" handle Ti/G10)
Strider SMF (S30V bead-blasted Ti, black G10)
Benchmade/HK Snody 14205 plain-edge (red bead-blasted G10, both plain, and partially serrated)
ZT 0301 (plain-edge, and partially serrated)
.......Ra Clicky 170 (1/med-low, 2/lowest low, 3/SOS, and 4/press hold, or double click forced high on all modes), i only ever use 1,2, and 4, but i have an option!