So, I'm putting together an extremely portable Pedaltrain Nano with four pedals. I've already decided on a 1) tuner 2) distortion 3) light od pedal. Help me decide on the forth pedal. I'm thinking of either a delay or a chorus. I'm playing in a rock cover band. Covering stuff from all eras of rock. I'm leaning towards the delay, only because I think the chorus probably gets lost in the mix anyhow, when playing live. What would you chose, after a tuner and drive pedals?