4 room. would appreciate your insights on how you selected your unit.
1st thing 1st, congrats on getting a 4rm number for river peaks, it's a fantastic location.
I'm not sure what number you balloted so let's start with what are the zones around you
River Peaks has a ratio of 5.8 and 6.1 (47 storeys). If you look south (where the cursor is) , there is a commercial and residential plot of 4.2, this means you probably need to be on a high floor (top 33%) to get unblock views in future. If you look north, the ratio is lower at 3.5, that means a mid floor (top 50%) unit will probably clear it.
Most people will avoid block 36A (from experience). Depending on what is your priority, most people will go for units that are closest to MRT (River Peaks 1) . In addition, the supermarket is located in River Peaks 1 vs F&B restaurants in River Peaks 2.
As for River Peaks 1, south facing stacks 110/112 is preferred because of privacy from lift lobby and wash area (rubbish chute) compared to 114/116. Stacks 100/102 is decent if you don't mind the unit mix. High floor units will have a nice view towards Bugis junction, Suntec City, Marina Bay and the sea. If you prefer North facing units, 118/120 is pretty good, even lowest floor (7th) should be clear of the MRT ventilation shaft.
Stacks 101/103 will be popular in River Peaks 2 as it is the exact same points as 110/112, 121 is partly blocked and has privacy issue from lift lobby. North facing stacks like 117/119 are best, 109 is partly blocked and the plus points are like 118/120 in River Peaks 1.
Fortunately all North and South facing stacks in River Peaks 1 and 2 will get some degree of west and east sun but it's negligible. The only concern is road noise from Jalan Besar Road and Ophir/Rochor Road because all of them experience heavy traffic. For those with kids (childcare in River Peaks 1), I can spot 3 primary schools but secondary schools will be further (e.g. Outram Secondary, Bendemeer Secondary), Lasalle/SOTA/NAFA/SMU are nearby.
Plenty of good food around this area like Tekka Market, City Square Mall, Berseh Food Centre, Bugis, etc. As for medical care there are Raffles Hospital Group, Farrer Park Hospital, KK Hospital and plenty of private GP clinics around.
In summary, it's a very good plot that is good for any family mix with Sky Terrace on the 27th storey for all blocks. Most popular stacks will be nearest to MRT and southern city/sea view.
Note that 4rm has 2 different layout.