If I was vs If I were

Some examples from the web:

• If I was larger and had grenades.
• If I was interested, it'd already be mine.
• If I was tired, I drank more espressos.
• If I was afraid, I went to more dangerous places.
• If I was 20 years older... I'dbein lovewithher.
• If I was four years younger, I'd punch you.
• If I was born in Monterey, probably would be in Brazil.
• If I was mentally deficient, I would have missed.
• If I was a tree farmer... I'd be embarrassed.
• If I was the prosecutor, I would want to know that information.
• If I was a dutiful servant, I'd consider the needs of my patron.
• If I was you I stopped to walk out there with those clothes.
• If I was a certain kind of man...
• If I was you, I'd reconsider.
• If I was your therapist, I'd definitely look every few minutes.
• If I was Batman, you would definitely be...
• If I was pregnant now, it would be a disaster.
• If I was married to her, I certainly...
• If I was you, I wouldn't believe anything he says.
• If I was you, I would Consider yourself lucky.

Some examples from the web:

• If I were them, I would have questions.
• If I were you, I'd leave the country immediately.
• If I were to discover that anyone is aiding Jedikiah, helping your uncle elude capture...
• If I were to design the perfect outlaw band... thisis thegangI'dcreate.
• If I were greedy, I would have asked for a deposit.
• If I were the quting department, I would be...
• If I were in his position, I would propose an international tribunal, too.
• If I were Pluto and someone told me...
• If I were you... call your lawyer.
• If I were him I wouldn't want to help reindustrialize Germany.
• If I were you, anywhere but here.
• If I were a woman, I would be disgusted.
• If I were you I'd want to forget.
• If I were the Medicine Man, I would have taken that penthouse.
• If I were a knight of Rohan, capable of great deeds...
• If I were alone, my chances of succeeding would be slim.
• If I were destitute and drawing my last breath...
• If I were a better man, I'd forbid it.
• If I were on the mountain I'd keep going.
• If I were you, I would the carwash here.