Hi,
The miniature choice is all really down to a question of when warfare changed from small warbands fighting in a loose skirmish like formation to the more rigid 'shieldwall' that we are used to imagining when we think of Anglo-Saxons warfare.
Currently ideas seem to be leaning more towards the idea that the earlier 'beef' then the more fluent the fighting. I am no certainly expert but I tend to agree with this idea as does some of the more recent academic thinking (eg Ken Dark is an advocate).
We at SESWC were lucky enough to playtest James Morris' Age of Arthur WAB tome and smaller shields, more fluent warfare etc was the consensus for the Saxons (and probably most others although not reflected in the actual army lists) up to the end of the 6thC into the 7th etc. Don't let the WAB part put you off, the book is fantastically researched and guidance and imput was provided from the likes of Prof. Guy Halsall, you may remember his 'Dark Age' articles from MW and WI many years ago?
So, with all that in mind I would be tempted to go for the Gripping Beast Early Saxon range. The mini's were relatively recently sculpted by 'Soapy', not the Patten brothers and thus has much more animation and dynamic in the sculpts.
You can see the range here:
http://www.grippingbeast.com/shop.php?CatID=281
I hope that has been of some help?
Cheers,
Darrell.