Radicals and Carbocations...stability question

[STACM]

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When it comes to carbocations and radicals, will they be more stable when resonance stabilized vs. higher substitution on the cation?

 

[Mstoothlady2012]

When it comes to carbocations and radicals, will they be more stable when resonance stabilized vs. higher substitution on the cation?

resonance is a way to go!!

allylyic > tertiary
benzyllic > tertiary

 

[DentalDeac]

resonance is a way to go!!

allylyic > tertiary
benzyllic > tertiary

I thought tertiary is the most stable

 

[Hugh Mannity]

Nope, single conjugated is more stable than tertiary, and tertiary with all 3 being phenyls is the most stable of all.