[robbo333]

Xtreme 22 with extensions.
Takes 1 minute to fit the extensions and go as high as you need.
Shorter closed length than the 25 and lighter. Less prone to breaking as the sections are shorter.

[Stoots]

SLX 25

Think theres a clear winner here 

i think theres only a dozen or so houses on my round that cant be reached with a 25

[Richard Groves]

I'd sooner have more than less.
The 25 may suit 90 % of jobs but what then ?
Nothing worse than taking on a job at full stretch or not being able to reach.
I used to have a supermax 40 and a clx 27. The 27 did the bulk of the work and subsequently got retired after a few years. I then used the supermax 40 with sections removed to give the equivalent of an slx 25, adding the other sections when needed. When a couple of the top sections got too worn ( one snapped ) I bought a new slx 25, still continue to use the bottom sections of the supermax 40 when needed ( must be nearly 10 years old now with minimal wear ). Tubeless style set up makes adding / removing sections so quick and easy. So my point is I'd choose whichever pole reaches all your work plus at least 1 section  and add / remove when required.  Thats gonna be a hell of a lot cheaper than buying 2 -3 poles and a 35 or 40 will not cost so much more than a 25.

[P @ F]

My next pole will be an slx 35 which I will break down into 3 parts an 18 with add ons to 27 then add ons to 35

[P @ F]

Cancel that .... I will actually have an slx 27 with #7 and #8 extensions then break down to a 4 section with 2 add ons with 2 sections in each , the full height I need with a nice collapsed length

[nathankaye]

If it's for staff, I wouldn't make it confusing for them, they'll probably break within first six months - year.
Stick to the 25  or go cheaper with the clx range, depending on your staff 

[Ooooooog]

Breaking down poles doesn’t do them any good, unless you’re really careful.