For DTL tanks the Moradin 25 in my opinion beats the Griffin for flavour , The OBS engine is a great tank and leak free as it is top airflow, The Vaporesso Gemini is also very good but does not have the capacity of the other 2.
For MTL tanks the Cthuhlu is good because it has the option of single or dual coil set ups. The Lemo in my opinion is no where near the Kayfun , I m sure others will tell you different but it is down to personal choice, there are so many variants of the kayfun out there that it is possible to create your own unique set up(bell caps , coloured tanks etc etc ) but they are all polycarbon pom or similar and some juices can crack them so I would be looking for a tank with a pyrex glass preferably, and yes the choice is bewildering to say the least.Good luck