I'm an arborist with a background in commercial landscaping so here goes:
Secateurs - Felco #2 - quality construction, ergonomic handle, balance point is about perfect and will last for EVER. I'm only on my second pair in 20years and thats only because I lost my first ones. I have used coronas, they are absolutely fine if the chances are they will get lost or stolen with regularity, otherwise the Felco's are the best and well worth the money.
Pruning Saw - Silky Zubat - the finest pruning saws I have ever used (used corona, stihl, and hardware store generics). Again, quality construction, incredible sharpness, smooth finish cut, blades are replaceable. Several models are available, the Zubat has a curved blade, there is a very similar one with a straight blade if you prefer.
Silky Hayauchi pole saw - 21' of cutting bliss. Have also used the Stihl pole saw, they are close in quality and cut but the Silky was cheaper and sharper and I like the extender snaps and buttons better than Stihls. Also it took too lng to get a Stihl here - like a month! Internet Silky order, here in a week.
The cheapest Silky I have come across $50 for a Zubat from Canadian Arborist Supplies. Or go to the Silky forum here as they are a sponsor. I have dealt with them direct through the forum, first class service.
Fiskars pruning stick - 5' long with an adjustable angle pruning head, it has two operating methods, a sliding handle mid way up the stick and a pull button and lanyard out the bottom. Very streamlined and light. I've thrashed it about in the trees for two years now and it's still going. The adjustable head allows you to make properly angled and placed cuts.
I also have its big brother, same idea but extendable to about 11'. It comes with a pruning saw attachement as well but I ditched that because it was useless. Stick to Silky's for saws!
Loppers - got a blue pair, long handles, don't use them much at all any more, I find myself using the Silky instead.
As with all equipment if it is your own and nobody else uses it, buy quality take care of them and they will last for a long, long time.
Hope this helps