Es mejor que lo haga usted mismo/a.
I’d rather you did it yourself/You’d better do it yourself.
Sería mejor que vinieras tú conmigo.
I’d rather you came with me.57.4.4 Es preferible que + present subjunctive, sería preferible que+ imperfect subjunctive
These two expressions may be used for indicating preferences with regard to oneself or
others.
Es preferible que yo/Vd. se lo diga.
I’d rather tell him/her myself/I’d rather you tell him/her.
Sería preferible que no viajaras.
I’d rather you didn’t travel.Expressing desires and preferences involving others 57.4