Here are my picks, with the best at the top:
Brendan Taylor
105 not out vs Bangladesh 2011 - http://stats.espncricinfo.com/ci/engine ... 22245.html
A century in a winning effort, with the pressure of the Comeback Test and of setting up a score to declare on. A classic hundred.
Hamilton Masakadza
104 vs Bangladesh 2011 - http://stats.espncricinfo.com/ci/engine ... 22245.html
Just as good as the one above, with the one caveat that he wasn't unbeaten. But nonetheless HM proved his class in the Comeback Test with a superb contribution.
Tino Mawoyo
163 not out vs Pakistan 2011 - http://stats.espncricinfo.com/ci/engine ... 23731.html
One of the grittiest centuries I've ever seen. It was ugly against Ajmal, but he found a way and that's what Test cricket is all about.
Sir Graeme Cremer
102 not out vs Sri Lanka 2016 - http://stats.espncricinfo.com/ci/engine ... 59702.html
The most unlikely centurion on this list, Sir Graeme's maiden century was as composed as you would expect from a specialist batsman let alone somehow with a batting average of 2.63 for the first half of his career. What made this century special was the captain rising to the occasion in his secondary discipline.
Brendan Taylor
171 vs Bangladesh 2013 - http://stats.espncricinfo.com/ci/engine ... 23576.html
A fun knock and a big hundred, which set up a thrashing victory.
Brendan Taylor
117 vs New Zealand 2011 - http://stats.espncricinfo.com/ci/engine ... 27017.html
Would probably be at the top of the list had we gone on to win (a match we should have won). Fourth innings counter attacking hundreds like this are rare, but without it we wouldn't have even got close.
Hamilton Masakadza
158 vs Bangladesh 2014 - http://stats.espncricinfo.com/ci/engine ... 60783.html
A big hundred in foreign conditions is worth its weight in gold for Zimbabwe, but unfortunately we didn't even get close to a first innings lead despite two centurions.
Regis Chakabva
101 vs Bangladesh 2014 - http://stats.espncricinfo.com/ci/engine ... 60783.html
As above but not quite the "daddy hundred" that HM scored. But a very good maiden hundred in unfamiliar conditions.
Brendan Taylor
102 not out vs Bangladesh 2013 - http://stats.espncricinfo.com/ci/engine ... 23576.html
The second hundred of the match for Taylor. The only reason this isn't higher up the list is ironically because he had already set up the match himself with his first innings 171.
Craig Ervine
146 vs New Zealand 2016 - http://stats.espncricinfo.com/ci/engine ... 24043.html
A nice big maiden century, without the Moor/Ervine partnership it would have been an even more embarrassing outcome. It's not Ervine's fault nobody else (bar Moor) came to the party, but given the magnitude of the loss it's hard to put this any higher in the list.
Sean Williams
119 vs New Zealand 2016 - http://stats.espncricinfo.com/ci/engine ... 24041.html
Any hundred from number eight is impressive, but we were just so far out of this game by the time he scored his hundred.
Hamilton Masakadza
111 not out vs Bangladesh 2013 - http://stats.espncricinfo.com/ci/engine ... 23577.html
A bit of a nothing hundred unfortunately. That's not HM's fault, but nobody stuck around with him and we went on to lose by a big margin.