I have a WS and an Underdog (another log) and like them both a lot for different reasons. Never tried the ditanium as I'm not much of a concentrate type of person but have heard great things.
I think logs are great little micro dosers. Very very efficient and for the most part all of the major log vapes (Woodscents, Underdog, Enano, Heat Island...1 year wait) all perform relatively the same. Differences will come down to aesthetics and accessories. This said, I hear that the enano performs just fine but I just don't quite appreciate the look as much compared to the others.
If it were me choosing, I would go with either an Underdog or Woodscents as I like to support the smaller shops and you probably don't want to wait the year for a heat island. But in narrowing between those two, it would somewhat depend on budget. I think the included dynavap makes these a really good deal (especially given his current sale).
Ed is currently running a pretty good sale right now due to the fact that he will be introducing a new body style in a couple of weeks. I know the heater has been modified but I'm not sure how much of an impact that will be on performance. Unfortunately, he is down to two Maple woodscents at the moment. It's usually $300 and I think he is including shipping too which is usually around $12...$240 including shipping (no code needed):
https://edstnt.com/woodscents?product_id=165
If you want another species, you can always try Entexchange on Reddit or you can buy one from Vgoodiez. They offer the WS in mango and only place that offers this species...$270 after discount (free shipping included...use code 'FC10%'):
https://vgoodiez.com/collections/ed...alog-mango-wood-vgoodiez-exclusive-by-eds-tnt
Puffitup will be the best place to score an enano...$160 (free shipping...use code 'puffedup' for 15% off):
https://www.puffitup.com/E-Nano-by-EpicVape-p/e.nano.htm?1=1&CartID=1
If you're looking for a ditanium, Vgoodiez should be your best bet...$242 (use code 'FC10%'):
https://vgoodiez.com/collections/ditanium