Langkawi vs Chiang Mai
Chiang Mai wins on: Thai food, elephants and northern-Thailand culture, plus the densest nomad community in the region. It is the original scene, with cheap rent (rooms from ~$300) and an entire ecosystem of cafes and meetups.
Langkawi wins on: cost, actually, duty-free pricing means your all-in month (food, drinks, gear included) usually lands below Chiang Mai even though rent is a touch higher. Add sea air over burning-season smog, an island instead of a landlocked city, and a calmer base for deep work. Visa-wise it is a wash; both have strong long-stay options.
Pick Chiang Mai for the food, the elephants and the crowd. Pick Langkawi for a cheaper all-in, cleaner air and a quieter island base.
Langkawi vs Bali (Canggu / Ubud)
Bali wins on: scene, surf and a huge creator community. Nothing in Malaysia matches Canggu's density of nomads, cafes and nightlife.
Langkawi wins on: cost (Bali has gentrified hard), traffic (Canggu's is brutal; Langkawi has none), legal stay (DE Rantau runs up to 24 months vs Bali's visa-run rhythm), and focus. We hear it constantly: people get more shipped in two weeks here than a month in Bali.
Pick Bali for the scene. Pick Langkawi to actually finish the thing you came to build.
Langkawi vs Da Nang
Da Nang wins on: cheap fast food and coffee, a long city beach, and Vietnam's relentless energy. Great if you like a buzzy mid-size city with the coast attached.
Langkawi wins on: visa length and simplicity (Vietnam still leans on e-visas and runs for many), duty-free gear and drinks, English everywhere, and proximity to Thailand by boat. Da Nang is louder; Langkawi is slower.
Pick Da Nang for city-plus-beach value. Pick Langkawi for a longer, calmer, lower-friction stay.
Langkawi vs Kuala Lumpur
KL wins on: infrastructure, flight connections, world-class malls, food courts and the best WiFi backbone of the group. It is the easy-mode big city.
Langkawi wins on: being the antidote to a big city, while sharing Malaysia's exact same DE Rantau visa. Same country, same 12-month pass, but you trade skyscrapers for rice paddies and the sea. Many nomads do both: a stint in KL, a stint on Langkawi.
Pick KL for connectivity. Pick Langkawi for the version of Malaysia that resets you.