Production vs. Notation
Before you start a new arrangement, be clear about your goals, whether you want to export a score for notation (export MusicXML or LilyPond), or render a musical performance for audio production (export to DAW).
Notation export requires strict quantization (note onsets and durations) and a rather minimalistic arrangement.
For audio production, you probably want to maximize rhythmic expression and variation and enhance the overall listening experience by all sorts of edits and enhancements that will look overly complex and confusing in exported notation.