Need some help with knowing some potential pros and cons of each? What do you love? What do you hate? What do you suggest?

Budget is about 32-39K.

Requirements are as follows:
1. Aluminum
2. 115 HP
3. 19-20'
4. Upgraded trolling to Ultrex
5. No passenger console

Just trying to learn more here.

Ask Ken Smith once he does a youtube review on them, which at this point seem like NEVER. Been waiting for the next tin boat review for while now.

I've been looking at aluminum rigs myself, although I'm looking at something with a minimum of 150 on the back. Here's my ranking of those brands you listed.

Vexus
Ranger
Express
Tracker (personally I'm out on Tracker)

If you want a 115hp I’d be looking at the 18’ boats. I wouldn’t be happy with a 115 on a boat rated for a 200-250.

dont go tracker. love my old tin can....but ive seen too many "cracked transom" posts in the tracker groups for the newer rigs. If you are on facebook i suggest doing that...joining the groups for each make. Do some scrolling in there to hear the common gripes, or positives and maybe post some questions. Angrier people make more noise of course, but you should still get good insights in those groups.

Out of all those brands I've only owned the Tracker, a lot of folks bad mouth them but they are a lot tougher than you'd think. I used mine; a TX17Pro, on Fork and it took a beating, I was a lot younger back then and drove it in a storm like a jet ski, kneeling slightly and holding on to the steering wheel. It got completely airborne; prop out of the water, on more than one occasion and hit hard when it came down and nothing gave, it held up.

My 2012 Tracker was two years out of warranty when the bow started cracking wide open. They took it back, stripped it, rebuilt it, reinforced it, and apologized for the lack of craftsmanship. I'll keep it until I die, hope that isn't anytime soon.

Your limiting yourself to just 4 brands? Lowe, Crestliner, avid, and g3 all make well built tin rigs. The g3 is pretty dang nice and so is the Crestliner

These too......

Only fished from a tracker for aluminum but have seen Ranger, Vexus, G3 and express at boat shows and I really like the Vexus more than the others. I have been drawn to them for a few years and may soon have one built (assuming they have everything )

Looking at what the pros are running, I see a lot of Xpress boats on tour these days. I have one that I have had since 1997 and if I could afford a new boat I would get another one. Mine is 18.5’ with a 150hp merc.

Reviving this
Have seen some cracked Vexus posts, not sure if the problem still exists. Looked at a few this weekend and they are set up very well but a little digging and found the crack issues. It sounds like their service is great but sending back a boat after a year or less with a cracked hull sounds unappealing.

Gator Trax and a few other "brands" build a lot better boats than any you've listed.

I’ve got the Xpress X19. Great boat, really enjoy it. It’s my 3rd Xpress. I’ve had an H56 (18’), an X21, now the current X19.
As stated above, I wouldn’t recommend a 115 HP. I’d change that to a 150 HP minimum.

You better take a hard look at Avid's also. They are new and really really nice I have a couple friends running them and loving them and the price on them is great in my opinion.