I've used both Excel and SkySafari 6 (SS) to log my data for about 30 AL observing programs. My current flow uses SS at the scope and then transferring everything to Excel the next morning over coffee.
I will mention that I've either found or created SkyLists for SS for the AL programs that I do. That makes moving from object to object and note taking with SS easier. Logging with SS makes some things very easy...it autofills date and time, it has provisions for seeing and transparency, if you've configured it adding your equipment, and after adding the info to the log the object can be hidden to remove it from the rest of the objects on the list. The bad part is adding descriptive comments and that's not SS's fault. It relies on the device so you either have to type it on the small screen keyboard or try voice to text. For me, neither of those do well with lots of errors. I've even tried it with an OTG cable and keyboard but then I need a table. One of the reasons I transfer everything to Excel is that I can still remember what the gibberish that was converted from voice is. After a couple of days I can't. There's also an issue of getting the data out of SS. I think a csv file can be exported from the online thing but it might be a paid option.
So why Excel (or other spreadsheet)? First, many of the programs already have the objects in spreadsheet format....names, RA/Dec, size, etc. It is a simple matter to add more columns for what else is required. Another benefit is that with a spreadsheet you can sort by any column you want and hide any columns or rows you don't need. Sorting really helps me plan for the night. Once your are done you can re-sort to match the AL's order and then get it to any format you want for the final document you send to the program's coordinator. Personally, I turn it all into a web page and send the coordinator the URL As an example here's the URL to my log for the Galileo program I did with binoculars:
I decided to do it that way because when I started actively working on AL programs in 2012 I was the club's webmaster. I figured that one of the reasons why more people didn't work on observing programs was because that didn't know what and how to log. Posting my logs online has helped others get started. If you have a curiosity to see more of my logs it isn't too hard to guess what to do to the URL to see the main page.
If the AL furnishes the object list in Excel format it isn't too difficult to convert it into a SS SkyList as long as all the objects are in SS's database. I've run in to some problems particularly on double star related programs. A second problem is that what the AL wants to call an object isn't always SS's primary name. That means that if the AL calls something "X" then while that name might be in the SS database and SS can find it, SS would rather call something "Y". Eventually you get used to that.
When the AL only furnishes the list in a PDF document I bite the bullet and convert it to Excel. Most of the time I'm able to copy/paste with some hard proofing along the way.
Some will say that the light from your laptop or tablet/phone will ruin night vision. I turn down the brightness and use a red screen. Other than a few on the H400 it hasn't been an issue.
Feel free to post to me if you have any more questions...
I may be starting on Two-in-the-View tonight