Besides budget, what other criteria you may have in mind? For example, UHD/HD, 3d/no 3d, going to play games on it/or not, type & number of input connections you need, level of picture reproduction quality that you can live with (from "very particular, color must be accurate.." to "can watch can liao")?
Generally, I would suggest consider putting the budget into screen size (go big), rather than fancy features you may or may not use at all (internet connectivity, android tv/smart tv platforms..).
For Sony, 60W600B (this is last year model, though, if I remember correctly), 55W800C (2015 model), 49X800C?
http://www.sony.com.sg/microsite/sonydays/asset/pdf/bravia-chart.pdf
For Samsung (the model naming can be a little confusing and different in different regions..), maybe UA60J6200, UA50JS7200?