While both are valid contenders, Find Traps is far easier to fix than True Strike.
True Strike is also clearly a failed attempt at a "Take aim" mechanic, and would of been much better off as just that.
Really? I feel that Find Traps is too vague to be useful, especially as a second level spell. I've had players try to argue that the spell should reveal natural hazards (potential rockslides, unstable buildings, etc), even though the spell descriptions says otherwise.
Make True Strike a bonus action to cast and suddenly it becomes much more useful. Make it so you can cast it on another creature and it is even more useful, however it is probably no longer a cantrip then. Just my opinion though... I also stopped voting when then two spells were tied in the 30's

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.