One advantage Yes has over Webe is device options. At the moment, Webe offers no device bundles with the plan being the sole offering.
Yes has a decent array of devices on offer as well as its own branded budget 4G LTE phone, the Altitude.
If you prefer buying your own device, then Webe might be a good option but if you want device discounts, Yes offers the better deal.
In reality, both Webe and Yes have been around for a fair bit. Webe was previously known as P1 and has built up a fair amount of base stations while Yes has pushed its own nationwide LTE rollout.
Reported speeds have so far been encouraging, ranging from 10Mbps to 50Mbps, although Yes appears to have wider coverage than Webe.
As both telcos ramp up their infrastructure, the coverage might improve but if getting connected at decent speeds everywhere is an issue, then Yes is the better option. Not to mention Yes also offers up its own broadband modem to use as part of its postpaid offering.
Objectively, it's hard to say that one telco is better than the other. More like, it will depend very much on your needs and usage patterns. Want to stream cat videos endlessly for one rate and don't care much about speed or tethering? Then Webe is your jam.
Want speed, mobile broadband and coverage with plan variety? Yes could be your alternative.
If you do want to try them out, we'd suggest you sample Yes on prepaid first. As for Webe, you could always port to the service temporarily and switch back to your previous provider if the service doesn't meet your expectations.
The choice, as a Malaysian consumer, is always yours. So take your time and don't feel pressured to commit to any one plan too soon.