scot56

6k baht will get you a room in most of the upper end hotels. Landmark meets that criteria. It's elegant and lot of guys like it because of its proximity to Nana. Adelphi is good, but it's a bit overpriced when compared to Phachara which is closer to Nana and offers you almost identical rooms for less. I don't know anything about Doubletree. I have stayed at Galleria 10 in the past, and it's perfectly acceptable. Forget that "walk of shame" stuff. I promise you that the staff at any of the hotels around lower Sukhumvit don't care what you do because they have seen it all eleventy billion times in the past. They don't care. REPEAT: They don't care. As for other farang guests whose delicate sensibilities are shaken by the sight of the world's oldest profession, why in the hell did they choose a hotel in the world's largest red light district?  Their issues are their problem, not yours. 
If you want to stay in suite type rooms, I also like In Residence suites on Soi 13 (adjacent to Radisson suites). They have large suites and a good pool on the roof. Soi 13 is next to Soi 11 but without the traffic and noise found on 11, meaning you can enjoy 11 easily without having to actually stay there. 

Dynasty Grande was my choice of hotel for all my visits over the years. Decided to upgrade to the Landmark last trip as I felt It was becoming a little stale. I took a club corner room. Very good with great facilities.
Even so I think for my next trip I would like to try a another hotel. I was thinking of the Sofitel on Sukhumvit. But reading these posts make me consider Dream. Anyone have an opinion of how they compare?
one new factor for me is the swimming pool. Never in my life was that a consideration for a hotel especially in Bkk, but I went to Pattaya a year ago for a week. Hated the place but went to the pool at my hotel, Areca Lodge, instead of being depressed walking around. Had to by trunks and flip flops, and just enjoyed reading and listening to music at the pool with a few beers.
Landmark had a good pool and Sofitel’s seems good as well. Both are big which avoids having to go down at 8am to secure a bed which is the case with smaller pools. I just like to wander down at Landmark for a few hours after breakfast or after walking around bkk.
my question is, is the pool good and large enough? I would stay at the main Dream hotel and the pool is in the annex across the road. Is that awkward and off putting?

That's the strange thing, both buildings have the same address and so the only way to avoid ending up in the annex is to state upfront that you want to be in the main building.
I have been in the annex once and it wasnt terrible, but the main building is better and this is where breakfast is served, so its more convenient.
Cheers
SAG

Hi there Sebastien
I am now on my fourth hotel which is citadines soi 8. I did a review. It's maybe half a star below S15 and the Dream hotel but I like being on the other side of sukhumvit and as I stay for 3-4 weeks the price difference of approx. 800-1000 per night adds up.
Saying that I still have fond memories of the Dream. You will enjoy your stay there but make sure you are in the main hotel and not the annex across the street.
Cheers
SAG

This is the second hotel that I used as my home from home when working and playing in BKK. I stayed there approx. 12-15 times between 2010-2015.
It is located about 300 metres into Soi 15, from Sukhumvit and they do run a free tuk tuk also, but I never used it.
The hotel is really nice and relaxed and the rooms are very comfortable. 
Its guest friendly and normally after about 00.00 you don't even have to sign visitors in.
Its marketed as a boutique hotel and its USP is that there are blue lights in the rooms, which supposedly assist with sleeping.
If you decide to book here, be aware that there is the main hotel and also the annex across the street. The main hotel is the nicer building and this is where breakfast is served.
Just around the corner there is a sub soi which leads to Soi 19 (there is no Soi 17). There is a good massage place called Cha Cha Massage almost next door to the Dream Hotel on the sub soi. Cha Cha massage is a legit place, so no 'hanky panky' that I am aware of, but it is very good and reasonably priced.
The hotel pool is located on the roof of the annex building and there is also a bar up there, but its not really a 'go to' bar.
The staff were really accommodating there and I never had a complaint.
If you walk to the end of soi 15 (about 700 metres?) you get to the canal and there is a canal boat stop there which you can use to catch a ride up to the palaces and museums etc. I did that a few times and it was a lot of fun.
The reason I stopped staying there is that they raised the rates about THB 3,000, which became too pricey for a 20-25 night stay.
One final tip is that if you walk about 150 metres down soi 15 and reach 7/11 on the left, there is a cutting through the building which leads you to soi 13. Then there is another cutting which takes you to soi 11, so its a great, but not well known short cut.
Cheers
SAG
 
 

Great reading and pictures in all these posts. A pleasure going through them. Will be arriving in BK soon and will take up a good few of these suggestions.