1) reliable and in budget - acer fits this place the best. quality is good and the price will suit your pocket.
2) high end laptops for professionals : dell, hp, toshiba fit in here. their price is more than that of acer (for even similar hardware configuration). they are more reliable than acer and have better features.
3) ultra high end - sony and ibm laptops come in here. you also have dell and hp in this space as well. they can be used for home use but these are mostly recommedned for professionals. they are the highest priced and their features are just too good. for eg : the hp laptop whose screen can be turned a full 360 degree or the ibm laptop whose keys are fully water proof and infact if you drop water, you can even see the laptop throwing it out :)
doha1402 is right.
basically there are 3 catagories of lappis.
1) reliable and in budget - acer fits this place the best. quality is good and the price will suit your pocket.
2) high end laptops for professionals : dell, hp, toshiba fit in here. their price is more than that of acer (for even similar hardware configuration). they are more reliable than acer and have better features.
3) ultra high end - sony and ibm laptops come in here. you also have dell and hp in this space as well. they can be used for home use but these are mostly recommedned for professionals. they are the highest priced and their features are just too good. for eg : the hp laptop whose screen can be turned a full 360 degree or the ibm laptop whose keys are fully water proof and infact if you drop water, you can even see the laptop throwing it out :)