The oldest dioramas are the two Siborne models. I prefer the smaller one with the 1 inch figures at Leeds Royal Armoury.
The Green Jacket museum model is currently being refurbished and will be well worth a view on its return:
http://www.hand-painted-soldiers.com/contents/en-us/d326_Waterloo_Miniature_2010.html
I saw this one at Celle in 2003 in Germany:
http://www.norbert-weise.de/ncwg-celle-2003.htm
Hans Slaager's is very evocative:
http://www.historyinminiature.nl/index.php?pn=album_detail&album_idnr=5
https://m.youtube.com/watch?v=JjRbqkBS-dk
Andreas Hoffman and friends excel with their huge Waterloo.
This one from Fuhrmann figures is again from Germany:
http://www.fuhrmann-figuren.de/sammlervorstellung/arndt-wolfram/arndt-wolfram-waterloo-1815-s2.htm
http://historyin172.blogspot.co.uk/2012/04/waterloo-3rd-part.html?m=1
History in 1/72 is particularly good at attracting high quality dioramas
http://historyin172.blogspot.co.uk/2012/04/waterloo-2nd-part.html?m=1
Thomas Mischak's model is really impressive. Check it out here at Benno's forum:
http://bennosfiguresforum.com/viewtopic.php?t=79
waterloo-this-time-from-thomas-mischak.html?m=1
And his Papelotte:
http://www.hat.com/Othr8/Mischak42P.html
Rene Betgum's model is excellent but hasn't changed much recently:
http://www.hand-painted-soldiers.com/contents/en-us/d326_Waterloo_Miniature_2010.html
Chris Dodson's photography skills and powers of composition are exceptional.
I like to mix old and new 20mm figures. It's a shame Lazylimey has stopped updating his blog and also the Hinton Hunter, with his other excellent blogs the Old Metal Detector and the Lone S Ranger. I love Prometheus in Aspic's Les Higgins army, interspersed with other compatible figures of various types.
