Well sayn it the UK, wod be hard but it cant be measured because each different country has its own standards...
Like in America pilots talk over the radio speaking pure slang english//// did that in the UK and the CAA would be askn questions bout things,,, nobodys knows, dont know anybody that did training in saudi Arabia for example, so how can anyone compare... Sure enough within the UK, UK wannabes may be able to compare but come on now...