What carbocation is most stable?
This answer is generalised to all compounds for stability.
You should check whether it satisfies the conditions for aromaticity.They are as follows:-
2-all atoms must be
3-Its must follow Huckels rule.
After aromaticity we check resonance.
Remember if the compound is aromatic ,the is more stable than resonating compound.(Exception might be few)
Check the number of
More is the
Remember this will be highly needed to check carbocation.