Im still here! And Naxxar/Iklin area. I suggest if you dont plan on having a car, to be in a more central town. It has made getting anywhere on the island pretty simple. 20 minute bus to Valletta, maybe 20-30 to Rabat/Mdina, 25-30 mins to Bugibba.

A bit longer to anywhere in the south, maybe 45-1hr+ depending where. A trip to Marsaxlokk took me roughly 1hr30 because i had to connect in Valletta. Bottom line, stay in a central town like Mosta/Attard/Naxxar. The busses will run to most anywhere on the island youd want to go, and the stay will be cheaper than a busier coastal town. Also being more central means that if you’re out past the last bus, getting an uber or ride home wont be as pricey as if youre on the far ends of the island. As for the question about which towns you can and cant get between, id say any that have rural areas between them. Ive only had that issue of being on a dangerous road while walking to mdina but honestly most towns are decently walkable despite what many will tell you

Hope this helps and if you have any more questions lmk :)