I must admit, i can see where Doc is coming from, unless your hankering for the V8 or M3 looks, which to tbf doesnt really look any better than the 1 imho, the 1 series is an attractive package at half the price.
I havent been in a 135i, but have been in a 1M and M3, the 1M was much more memorable and felt so much more nimble.