What features should a C#/.NET profiler have?

There is EQATEC Profiler that's a free .Net profiler that I have been meaning to use.

One thing I would like to see is Mono compatibility. I have started dabbling in Mono, and it would be great to have a .Net and Mono profiler!

My wish list:

Really easy to use - simple (yet powerful) GUI
Spectacular performance - ability to profile apps that are under extremely heavy usage.
X64 and X32 support
Understands SQL, is able to give me stack traces and duration for all my SQL calls, coupled with SQL.
Easy to profile, no need to go through a complex, recompile the app process.
Easy to profile services, web sites and processes which are launched as side effects
A "production mode" which allows you to gather key stats from a production based system.
- "Automatic bottleneck finder" : run against a production app and using heuristics determine which methods are slow.
Per thread analysis, tell me which threads are doing all the work and where.
Profile at various granularities, allow to perform a "cheap" profile that only gathers key info and dig in with granular profiling.
Exception tracker, allow me to track all the exceptions which are thrown in my app (key stats and detailed info)
Per thread profiling - allow me to profile a single thread in an app

My requirements:

Collect stats without impact to application - e.g. don't fill up memory, allow data to be collected away from apps under question
Ability to specify measurements simply and repeatably (data driven)
Automatable so that I can repeat measurements without point and click, and without UI
Enable us to understand issues related to the WPF and other declarative technologies such as DLR or WF
No installation - no gac, msi etc, even better if can be run over a network
Support 64 bit from outset
Don't try to know all the the analysis that could be done - encourage an ecosystem. If the raw stats can be analysed using other tools so much the better.
UI if any should be good - but its the stats that matter. So don't spend time on that, get the core profiling good.
- Support profiling of apps that are not straight exe's like services and web applications simply.

would likes:

Consider cross app support - big apps often need to understand apps performance behavior across many executables. If your profiler allows easy correlation of this data then so much the better

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