INTJ, because they would do all the things that I would rather avoid. The problem is that they probably wouldn't agree with my work style... ok, any NT that doesn't control you, works hard and makes decent decisions.
: hang on... a boss is someone that watches over your work, not works with you, right?
Well, in that case, I want a boss that will work with me on the same level, and that would probably be INTP/ENTP
Are we to assume healthy, mature individuals? In that case I'm going for either NTJ since with an NTP I think I would be driven to take some measure of responsibility for Te stuff anyway, so I might as well actually be the boss (or an equal partner) in that case. If we are comparing unhealthy individuals, I'll take the laissez-faire NTP, please, or maybe the super bossy ENTJ. Passive-aggressiveness I can tune out, flightiness I can compensate for, and steamrolling I can somehow respect. Closed-minded certitude, however - see my signature.
"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray
As an INTP, I think no matter what, in essense I will always be and feel to be my own boss, regardless of my position.
Thankfully, I am my own boss and thus there is no clashing titan stuff going around in my life. :P
A boss should foster growth. An INTP with a well developed Te & Ni is likely to be better than an INTJ since in my experience INTJs don't as easily have Ne and Ti developed and/or used. With closure related pressures in the mix, an INTP is likely to dip more easily into Te & Ni and/or an 'as the situ required/needs/forces' combination of the two. Besides, when the resistive medium is below, Jness tends to be pushed to the fore and a more seamless and 'natural' 'transition to the new dispensation to achieve the end result' orientation is likely to be a smoother and hence easier path to follow which is more likely to lead to the end result being achieved more efficiently.
In SJ and SP dominant environments, NTJs might naturally be better for dealing with lowest common denominator scenarios hampering result orientation or deciding result levels. ENTJs are likely to be less well suited since the Te+Ni combination seems to be less suited than the INTJs Ni+Te is.