Prettus\Validator versus FormRequest ?

I would have used Prettus\Validator but currently i don't want to have to add code to catch validationexception in controllers and/or Service classes

while using formrequest is capable of both encapsulating validation rules and managing form re-display with errors "magically"

how do you deal with ?

_it is highly possible that i miss something, i read several times l5-repository documentation validation part and laravel-validator doc_