no, because giants have no reloading animation

You can't kite with giants.
as said above.

I highly doubt it, but i'll test it out.

Edit: The conclusion, no

3 order giants beat 3 chaos giants without kiting anyway.

Quote from MiamiBigAL

3 order giants beat 3 chaos giants without kiting anyway.

Nope, you're wrong, 3 Order Giants can't beat 3 Chaos Giants.
And even with 2 vs 2, the Chaos can still beat the Order.
Order's Giant only win when 1 vs 1 or with supports from other units.

Have you tested? I tested 3 order vs 3 chaos. If order concentrates fire, they win and don't lose any giants.

I think all giants were fully upgraded, but can't exactly remember.

Im pretty sure that if order kept their giants like g---gg with the enemy coming from the left, they could win against 3 chaos giants. also, i think the more giant upgrades you have, the more the battle turns to chaoses favor

Well, it depends on what you mean as kitting. Startcraft 2 kitting, or what everyone here refers as kitting?
Starcraft 2 version: One unit runs around while another unit does the damage. Yes, this is perfectly possible with giants.
This version(Also known as stutter-stepping in starcraft 2): One unit attacks, runs, and attacks. This.....is possible, but not effective.