Which spelling of Laura/Lora is easier and which one do you prefer?

Ditto.

I used to work with a [name_f]Lora[/name_f] and she didn’t like how her name was spelled. Also, since [name_f]Laura[/name_f] is just a little bit longer than [name_f]Lucy[/name_f], it is more visually appealing than [name_f]Lora[/name_f] [name_f]Lucy[/name_f].