Why always compare to DLRS?

Okay, NEX 7 can give similar IQ with D3100/5100 for landscapes, portraits... But no way it can compete with D7000/ D300( yes , they re APS-C) and D600/700/800 .

First, if you miss AF then how can you get good IQ ?

Second, please give me  a list of NEX lenses that are comparable ( both in AF speed and IQ) with Nikon lenses like 24-70, 85 1.4G, 14-24, 70-200, 35 1.4G..

Third, the design of a compact camera can not give you the best handling/composing while shooting as DSLRs do.

Last, show me any event photographers that use sorely NEX cameras? If they are comparable, why they have to carry a bundle of big/heavy DSLRs..?