Here is how these two tents compare on the numbers. They score within a hair of each other, so it comes down to the details below.
| Big Agnes Fly Creek HV UL2 | Mountain Hardwear Nimbus UL 2 | |
|---|---|---|
| GearScore | 80✓ | 79 |
| Capacity | 2 | 2 |
| Packed weight | 30.0 oz✓ | 32.0 oz |
| Floor area | 28 sq ft | 28.1 sq ft✓ |
| Space-to-weight | 14.9 /lb✓ | 14.1 /lb |
| Peak height | 42 in✓ | 41 in |
| Doors | 1 | 1 |
| Vestibules | 1 | 1 |
| Price | $450✓ | $460 |
| Type | Ultralight | Ultralight |
Highlighted cells mark the better spec: Fly Creek HV UL2 in blue, Nimbus UL 2 in amber. A blank spec is never counted as a win. GearScore is the overall rating (0 to 100); re-weight it on the full tent comparison. Prices are current MSRP.
The Big Agnes Fly Creek HV UL2 against the Mountain Hardwear Nimbus UL 2 is a study in priorities. They are close enough that this really is about which handful of specs you weight most.
The Fly Creek HV UL2 is 2 oz lighter, better space-to-weight, and taller (42 vs 41 in peak). The Nimbus UL 2 is more floor area (28.1 vs 28 sq ft). Their GearScores land within a couple of points (80 vs 79), so neither runs away with it.
Pick the Fly Creek HV UL2 if you care most about low weight and space-to-weight, which makes it the better call for counting grams on long miles. Pick the Nimbus UL 2 if floor space matter more to you, or you are focused on comfort and room to move.
The Big Agnes Fly Creek HV UL2. It is 2 oz lighter than the Nimbus UL 2.
The Mountain Hardwear Nimbus UL 2. It is more floor area (28.1 vs 28 sq ft) than the Fly Creek HV UL2.
They are nearly tied at 80 and 79 on the default algorithm, so re-weight the score to your own priorities to break the tie.
It depends on your priorities. Go with the Fly Creek HV UL2 for low weight, or the Nimbus UL 2 for floor space. The spec table above shows exactly where each wins.