Compare official specs;
Asus:
https://www.asus.com/displays-desktops/monitors/tuf-gaming/tuf-gaming-vg27aqml1a/techspec/
MSI:
https://www.msi.com/Monitor/G274QPX/Specification
Difficult to tell since there are no Rtings review of both of them. Only Asus one.
The MSI monitor is 240 Hz and has G-sync. In the Rtings site, they have the review of MSI 170 Hz and Freesync model.
Here's the comparison to the Asus one:
https://www.rtings.com/monitor/tools/compare/msi-g274qpf-qd-vs-asus-tuf-gaming-vg27aql1a/38940/15402
Now, i can not tell if the MSI 240Hz one has the same panel as MSI 170Hz one or not. Whereby only diff is higher refresh rate and G-sync support. If so, panel performance can be considered from the Rtings data.
But if the MSI 240Hz monitor has different panel, then Rtings data about MSI monitor can't be considered. But you still have in-depth data about Asus monitor.
Personally, i wouldn't pick neither of the two, mainly because poor contrast ratio. For me, min contrast ratio must be 3000:1 (e.g VA panel). While these two have it at 1000:1 (IPS panel).