I finally bit the bullet and grabbed an X-T5 last week for my trip to Tokyo and Kyoto next month but now im stressing over glass. I been shooting with the 35mm f2 which is great but I really need a one-lens-does-it-all kind of zoom for when im walking 20k steps a day and dont wanna swap lenses every five minutes.

Ive been reading tons of threads and keep seeing people argue about the 18-55mm kit lens vs the 16-80mm f4. Some guys say the 18-55 is a classic but then others say it cant handle the 40 megapixel sensor on the T5 and looks all mushy if you crop in. Then there is the 16-80 which has great range but I saw some reviews saying it has weird edge softness at the wide end which kinda scares me for landscapes.

Im also looking at these:

• 16-55mm f2.8 Red Badge
• Tamron 17-70mm f2.8
• Sigma 18-50mm f2.8

The Red Badge seems like the best but is it way too heavy for travel? I dont want my neck to die by day three lol. My budget is around $900 and I dont mind buying used since I spent so much on the body already. If you had to pick just one zoom to live on your X-T5 for a three week trip what would it be...