
SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

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Dyson DC7 since 2001 and it still works great. Dyson v7 since about 2010 for the back house. A Dyson v12 slim for everyday use. Every 3 months I disassemble all 3 and give a through cleaning. Easiest vacuums I've ever owned.
I got a DC07 Dyson as a wedding gift, 23 years ago! Happy to report my marriage and my Dyson are still going strong with regular maintenance. Also bought a Dyson stick vacuum a few years ago and the DC07 absolutely outperforms it, I’ve already had to replace the battery once whereas the only replacement needed on the upright over decades has been the hose, 3 or 4 times now and only available on eBay. The stick one is still nice for small cleanup jobs though.
Owned Dyson DC07 for 3 years. Small canister, constant clogs, half dozen fiddly covers and latches to remove for clearing a clog. Switching to hose was a real chore, dumb design. Shark Vertex Duoclean, 1yr 7mo so far. Good power, great design, canister lifts away so the vacuum can go under furniture, switch to hose with a button press. Single door for cleanout. Kirby G4, 30 years so far, handed down from parents. Ultimate power, ultimate weight. Suck the dimples off a golf ball, never a clog. Bulky, heavy, indestructible. Switch to hose is a bit clumsy. You can get a used G3 or G4 on marketplace or Craigslist and have no concerns about it lasting decades. TLDR: Shark Duoclean for lightweight day to day. Kirby for monthly "deep cleaning".
I got a yellow and grey DC07 when they just came out in like '01 or '02. Used it until about 5 years ago and the only money I spent on it in that time was to replace the flexible hose that tore after like 15 years. The only reason I got rid of it was to get a cordless vac. I still miss the DC07.
My second hand Dyson dc07 is incredible
I have a Dyson DC07 and its great. I ended up with a Dyson V10 and its also been great. I'll admit, I am afraid to replace it with a newer model though. Especially after my Dyson fans.

SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

Numatic International
Henry Canister Series
Budget king, super durable, but heavy and poor on carpets.

SEBO
AIRBELT D4 Premium
Durable, powerful, long cord, but heavy and pricey.

SEBO
FELIX Premium
Durable, powerful, good for allergies, but heavy with awkward attachments.

Miele
Classic C1 Cat & Dog PowerLine
Durable, powerful, quiet, but very expensive, short cord.

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
Numatic International - Henry Canister Series

Ranked #1
Dyson - V15 Detect Series