I would say that both languages are similar and we can with a little bit of effort undertand each other, but fluency demand a lot of study. Most widely spoken is Spanish and Portuguese is by far more difficult to master. Well we could say that Spanish is a language with great chances to be the most used language apart from English for internacional communication because of developing countries but I woudn't say it's better. I speak English, Japanese, Portuguese and a bit of Spanish all of these are equally important and it has its' individual value.

Por supuesto hablando! Podriamos empezar por Oi tudo bem?(?Ola como estás?) Bom dia/tarde/noite. (Buenos dias/tardes/noches) o me adicionar como amigo hasta la vista

Filme da hora. Mó legal o filme. Filme irado. são girias (slang) ol