Could someone clarify difference between broad, phrase, and exact match SERP ranking figures?

I'm very familiar with exact, phrase, and broad match search volumes and what they mean. I prefer to use exact match and have a look at phrase match as well when choosing keywords as a secondary concern.

But Market Samurai, for example, offer both broad and phrase match SERP ranking figures.

Now surely what we need to know most is the exact match figure instead.

I've founded my keyword research upon GKW's exact match volumes, in relation to SEOmoz's ranking metrics (infinitely more useful than PR and so-called "competition" figures).

As far as I'm aware, exact match volume is more popular than phrase match volume, so surely rank checkers should be using it by default. I want to know where I rank in Google for just [keyword], first and foremost.

I really don't understand MS's broad match result. As broad match just means that all the words of your keyphrase are included, in any order, with any other additional words in the search term, then what the heck could a precise figure for broad match ranking in Google even mean?

Are they tallying up all the broad match results for that keyword and producing an average? If so, no wonder MS ranking calculations are so slow!

I'm very impressed with SEscout, which I just discovered, which offers automatic hourly updated rankings, so you never have to run the search, just refresh the page. And email notifications for whatever specific rank changes you specify!

I'm going to switch to using them, but what type of keyword would they use, is phrase match the norm? If so, I really wish it were exact match!

Thanks then.