I like TiCo picks because they look more interesting and feel more personal than DC picks. Part of that is because of the 'name on create' feature. mDiyo's system of sprite overlays is pretty cool and makes DC stuff seem a little boring by comparison. It's a bit more fun to mix and match a bunch of different materials than it is to follow a standard tool recipe with force ingots and force sticks and then socket a bunch of stuff. Though I'll admit the use of fortune cookies rather than tons of lapis blocks does make fortune far less tedious to get in DC.
One annoying thing about TiCo mattocks is that they don't do place-block-on-rightclick like picks do, which is a bit annoying for my current project. (I have to keep switching slots very fast as I mine out a ceiling and place glass before lava gets all over the floor for the dozenth time...)
I do wish you could rename your tools after creating them without wasting time and exp using an anvil to do it. Still fun creating highly customisable tools. I named my alumite pick Pinkie Pie, and my end goal thaumium/mahnamahna pick loaded with mods the Pick of Harmony.