Vishnu or shiva or Brahma whom should we pray to get salvation

 Vishnu or shiva or Brahma whom should we pray to get salvation

in Skanda purana 1.15 - under the topic Karandham’s Queries

it is written that it is foolishness to think one superior than other. 

what matters is devotion. 

if devotion is heartful then all three are capable of bestowing salvation.